Michael_the_Lithuanian
De moribus tartarorum, lituanorum et moscorum
16th-century treatise by Michalo Lituanus
De moribus tartarorum, lituanorum et moscorum ("On the Customs of Tatars, Lithuanians and Muscovites") is a 16th-century Latin treatise by Michalo Lituanus ("Michael the Lithuanian"). The work, which was originally dedicated to King of Poland and Grand Duke of Lithuania Sigismund II Augustus, survived only in ten fragments that were first published in 1615 by Johann Jacob Grasser in Basel, Switzerland.[1]