House of Sobieski
Sobieski (plural: Sobiescy, feminine form: Sobieska) was a prominent magnate family of Polish nobility in the 16th and 17th centuries from which the King of Poland and Grand Duke of Lithuania Jan III Sobieski originated. The family used the Janina coat of arms. History. According to the family's legend, it traced its lineage to a Polish duke, Leszek II the Black. Another family legend said that they were the descendants of Duke "Sobiesław", the son of Leszko III, a legendary ruler of the Popielids dynasty. The family reached the height of its power and importance in  the late 16th and 17th centuries, when one of its members was elected King of Poland: John III Sobieski (Jan III Sobieski). The last male member of the branch of the family that began with John's grandfather, Marek Sobieski, in the 16th century was Jakub Ludwik Sobieski (1667–1737). Coat of arms. The Sobieski family used the Janina coat of arms, and their motto was "Vel cum hoc, vel super hoc". Famous descendants. Among the descendants of John III Sobieski were one Holy Roman Emperor (simultaneously one King of Bohemia and one King of Germany), seven Kings of Saxony (simultaneously  one Duke of Warsaw), one King of Bavaria, two Kings of Italy (simultaneously one Emperor of Ethiopia and one King of the Albanians), one Tsar of Bulgaria, one Emperor of Austria (simultaneously one King of Hungary), one Queen consort of Spain and one titular Queen consort of England, Ireland and Scotland.