Central Asian route

Slavery in the Muslim world provided a great market for the slaves captured by the Vikings in Europe. Islamic law banned Muslims from enslaving other Muslims, and there was a big market for non-Muslim slaves on Islamic territory, where European slaves were referred to as saqaliba; these slaves were likely both Pagan Slavic, Finnic and Baltic Eastern Europeans ^[17] as well as Christian Western Europeans.^[18]

People taken captive during the Viking raids in Europe could be sold to Moorish Spain via the Dublin slave trade^[19] or transported to Hedeby or Brännö in Scandinavia and from there via the Volga trade route to present day Russia, where slaves and furs were sold to Muslim merchants in exchange for Arab silver dirham and silk, which have been found in Birka, Wollin and Dublin;^[20] initially this trade route between Europe and the Abbasid Caliphate passed via the Khazar Kaghanate,^[21] but from the early 10th-century onward it went via via Volga Bulgaria and from there by caravan to Khwarazm, to the Samanid slave market in Central Asia and finally via Iran to the Abbasid Caliphate.^[22] This was one of the major routes of the Viking slave trade, alongside the Black Sea slave trade.^[23]

The slave trade between the Vikings and the Muslims in Central Asia are known to have functioned from at least between 786 and 1009, as big quantities of silver coins from the Samanid Empire has been found in Scandinavia from these years, and people taken captive by the Vikings during their raids in Western Europe were likely sold in Islamic Central Asia, a slave trade which was so lucrative that it may have contributed to the Viking raids in Western Europe, which was used by the Vikings as a slave supply source for their slave trade with the Muslim world.^[24]

Balkan slave trade

The Balkan slave trade went by route from the Balkans via Venetian slave traders across the Adriatic and the Aegean Seas to the Islamic Middle East, from the 7th-century until the Ottoman conquest of the Balkans in the 15th-century.

Until the 6th- and 7th-century, the Balkans belonged to the Byzantine Empire, but was split by invasions of the Avars, Slavic tribes and other peoples. The new peoples populating the Balkans did not initially create any centralized state, which created a situation of permanent political instability on the Balkans. The various tribes conducted warfare against each other and took war captives. Due to the lack of a centralized state to negotiate for ransom, a habit formed in which war captives from the tribal wars on the Balkans were often sold to merchants from the Republic of Venice at the Adriatic coast. This developed in to a major slave trade in which Venetians bought captives from the Balkans whom they sold to the Byzantine Empire and the Islamic Middle East, which contributed to the growth of Venice as a major commercial empire by the 11th-century.^[25]

The slaves bought by the Venetians at the Adriatic coast were transported by the Venetians to the slave market at the Aegean Islands were the majority continued to Egypt.^[25]

Prague slave trade

In Western Europe, a major slave trade route went from Prague in Central Europe via France to Moorish Al-Andalus, which was both a destination for the slaves as well as center of slave trade to the rest of the Muslim world in the Middle East. Prague in the Duchy of Bohemia, which was a recently Christianized state in the early 10th-century, became a major center of the European slave trade in between the 9th- and the 11th-century. The revenue from the Prague slave trade has been named as one of the economic foundations of the Bohemian state, financing the armies necessary to form a centralized state, which was not uncommon for the new Christian state in Eastern Europe.^[26]

The Duchy of Bohemia was a state in a religious border zone, bordering to Pagan Slavic lands to the North, East and South East. In the Middle ages, religion was the determining factor on who was considered a legitimate target for enslavement. Christians prohibited Christians from enslaving other Christians, and Muslims prohibited Muslims from enslaving other Muslims; however, both approved of the enslavement of Pagans, who thereby became a lucrative target for slave traders.^[27] In the 9th and 10th-century, the Slavs in Eastern Europe were still adherents of the Slavic religion, making them Pagans to the Christians and infidels to the Muslims and considered as legitimate targets for enslavement by both. Bohemia, being a religious border state close to Pagan lands, were thus in an ideal position to engage in slave trade with both Christians and Muslims, having access to a close supply of Pagan captives. The slaves were acquired through slave raids toward the Pagan Slavic lands North of Prague.

The Pagan Slavic tribes of Central and Eastern Europe were targeted for slavery by several actors in the frequent military expeditions and raids alongside their lands.^[28] During the military campaigns of Charlemagne and his successor in the 9th-century, Pagan Slavs were captured and sold by the Christian Franks along the Danube-Elbe rivers, and by the mid 10th-century, Prague had become a big center of the slave trade in Slavic Pagans to al-Andalus via France.^[29]

Prague was known in all Europe as a major slave trade center.^[30] The armies of the Dukes of Bohemia captured Pagan Slavs from the East in expeditions to the lands later known as Poland to supply the slave market, which brought considerable profit to the Dukes.^[31] Several sources from the 10th-century mentioned how the Dukes were involved in supplying the Prague slave market and that the slaves normally came from lands corresponding to what later corresponded to Southern Poland and Western Ukraine.^[32]

The slaves sold by the Vikings via the Eastern route could be Christian Western Europeans, but the slaves provided by the Vikings to the slave route of Prague-Magdeburg-Verdun were Pagan Slavs, who in contrast to Christians were legitimate for other Christians to enslave and sell as slaves to Muslims; according to Liutprand of Cremona, these slaves were trafficked to slavery in al-Andalus via Verdun, were some of them were selected to undergo castration to become eunuchs for the Muslim slave market in al-Andalus.^[33]

Traditionally, the slave traders aquiring the slaves in Prague and transporting them to the slave market of al-Andalus are said to have been dominated by the Jewish Radhanite merchants.^[34] While Christians were not allowed to enslave Christians and Muslims not allowed to enslave Muslims,^[34] Jewish slave traders had the advantage to move freely across religious borders, and supply Muslim slaves to the Christian world and Christian slaves to the Muslim world.^[35] as well as Pagan slaves to both.^[34] Both Christians and Muslims were prohibited from performing castrations, but there was no such ban for Jews, which made it possible for them to meet the great demand for eunuchs in the Muslim world.^[34]

The slaves were transported from Prague to Al-Andalus via France. While the church discouraged the sale of Christian slaves to Muslims, the sale of Pagans to Muslims was not met with such opposition. Louis the Fair granted his permission to Jewish merchants to traffick slaves through his Kingdom provided they were non-baptized Pagans.^[35]

The most lucrative slave market was the Islamic slavery in Al-Andalus. The Arabic Caliphate of Córdoba referred to the forrests of Central and Eastern Europe, which came to function as a slave source supply, as the Bilad as-Saqaliba ("land of the slaves").^[36] The Prague slave market was a part of a big net of slave trade in European saqaliba slaves to the Muslim world. Ibn Hawqal wrote in the 10th-century:

‘The country [of the Saqaliba] is long and wide....Half of their country...is raided by the Khurasanis [Khorezm] who take prisoners from it, while its northern half is raided by the Andalusians who buy them in Galicia, in France, in Lombardy and in Calabria so as to make them eunuchs, and thereafter they ferry them over to Egypt and Africa. All the Saqaliba eunuchs in the world come from Andalusia....They are castrated near this country. The operation is performed by Jewish merchants.'^[37]

In Islamic lands, the slave market had specific requirements. Female slaves were used for either domestic or sexual slavery as concubines. Male slaves were used for one of two categories: either for military slavery or as eunuchs. The latter category of male slaves were subjected to castration for the market. Many male slaves selected to be sold as eunuchs were subjected to castration in Verdun.^[38] The nature of the market for saqaliba slaves meant that most saqaliba slaves would have been prebubescent children when enslaved.^[39]

In Moorish al-Andalus, European saqaliba-slaves were considered as exotic display objects with their light hair, skin and eye colors.^[40] White European slaves were viewed as luxury goods in Al-Andalus, where they could be sold for as much as 1,000 dinars, a substantial price.^[41]

The slaves were not always destined for the al-Andalus market; similar to Bohemia in Europe, al-Andalus was a religious border state for the Muslim world, and saqaliba slaves were exported from there further to the Muslim world in the Middle East.

The Duchy of Bohemia and the Caliphate of Córdoba were both dependent on each other because of the from the slave trade; the Caliphate of Córdoba was dependent on enslaved bureaucrats and slave soldiers to build and manage their centralised state, while the new state of the Duchy of Bohemia built their economic prosperity in the profit earned by the slave trade with the Caliphate.^[42]

The saqaliba slave trade from Prague to al-Andalus via France lost its religious legitimacy when the Pagan Slavs of the North started to gradually adopt Christianity from the late 10th-century, which made them of bounds for Christian Bohemia to enslave and sell to Muslim al-Andalus.^[43]

Christian Europe did not aprove of Christian slaves, and as Europe adopted Christianity almost entirely by the 11th-century slavery died out in Western Europe North of the Alps in the 12th- and 13th-centuries.^[44]

The disintegration of the Caliphate of Córdoba in the early 11th-century, which was completed by 1031, corresponded to a period of instability in the Duchy of Bohemia in parallell with the end of the slave trade between Bohemia and the Caliphate.^[45]

Other slave trade routes

During the Middle ages, Saracen pirates established themselwes in bases in France, the Baleares, Southern Italy and Sicily, from which they raided the coasts of the Christian Mediterranean and exported their prisoners as saqaliba slaves to the slave markets of the Muslim Middle East.^[46]

The Aghlabids of Ifriqiya was a base for Saracen attacks along the Spanish East coast as well as against Southern Italy from the early 9th-century; they attacked Rome in 845, Comacchio in 875-876, Monte Cassino in 882-83, and established the Emirate of Bari (847–871), the Emirate of Sicily (831–1091) and a base in Garigliano (882-906), which became bases of slave trade.^[47] During the warfare between Rome and the Byzantine Empire in Southern Italy in the 9th-century the Saracens made Southern Italy a supply source for a slave trade to Maghreb by the mid 9th-century; the Western Emperor Louis II complained in a letter to the Byzantine Emperor that the Byzantines in Naples guided the Saracens in their raids toward South Italy and aided them in their slave trade with Italians to North Africa, an accusation noted also by the Lombard Chronicler Erchempert.^[48]

Moorish Saracen pirates from al-Andalus attacked Marseille and Arles and established a base in Camargue, Fraxinetum or La Garde-Freinet-Les Mautes (888-972), from which they made slave raids in to France;^[47] the population fled in fear of the slave raids, which made it difficult for the Frankish to secure their Southern coast,^[47] and the Saracens of Fraxinetum exported the Frankisk prisoners they captured as slaves to the slave market of the Muslim Middle East.^[49]

The Saracens captured the Baleares in 903, and made slave raids also from this base toward the coasts of the Christian Mediterranean and Sicily.^[47]

While the Saracen bases in France was eliminated in 972 and Italy in 1091, this did not prevent the Saracen piracy slave trade of the Mediterranean; both Almoravid dynasty (1040-1147) and the Almohad Caliphate (1121–1269) aproved of the slave raiding of Saracen pirates toward non-Muslim ships in Gibraltar and the Mediterranean for the purpose of slave raiding.^[50]

Valencia

The following list is derived from Bosworth 1996, p. 19.

• Muhārak and Muẓaffar: 1010/11–1017/18^[51]

  to Tortosa: 1017/18–1020/21

• ʿAbd al-ʿAzīz ibn ʿAbd al-Raḥmān ibn Abī ʿĀmir al-Manṣūr, son of Sanchuelo: 1020/21–1060
• ʿAbd al-Malik ibn ʿAbd al-ʿAzīz Niẓām al-Dawla al-Muẓaffar, son of prec.: 1060–1065

  to the Dhuʾl-Nūnids: 1065–1075

• Abū Bakr ibn ʿAbd al-ʿAzīz al-Manṣūr, brother of prec.: 1075–1085
• ʿUthmān ibn Abī Bakr al-Qāḍī, son of prec.: 1085

  to the Dhuʾl-Nūnids

Dénia

The following list is derived from Bosworth 1996, p. 17, who calls them the Banū Mujāhid. Mujāhid was a member of Muḥammad ibn Abi ʿĀmir's household.^[51]

• Mujāhid ibn ʿAbd Allāh al-ʿĀmiri al-Muwaffaq: c.1012–1045
• ʿAlī ibn Mujāhid Iqbāl al-Dawla: 1045–1076

  to the Hūdids

Tortosa

• Labib al-Fata al-Saqlabi (Valencia 1017–1019): c. 1009–bfr. 1039/40
• Muqatil Sayf al-Milla: bfr. 1039/40–1053/4
• Ya'la: 1053/4–1057/8
• Nabil: 1057/8–1060
  • To Zaragoza: 1060–1081 or 2/3

Almeria

• 1012 Aflah.
• 1014 Khayran. Slavic slave from Cordoba Caliph palace, who dedicated his rule to the development of Almería.
• 1028 Zuhayr, also a former Slavic slave from Cordoba
• 1038 Abu Bakr al-Ramimi
• 1038 Abd al-Aziz al-Mansur, al-Mansur's grandson, King of Valencia

From 1038 to 1041 Almería belonged to the Taifa of Valencia.