The House of Mindaugas (Lithuanian: Mindaugaičiai) was the first royal family of Grand Duchy of Lithuania, centered on Mindaugas, the first known and undoubted sovereign of Lithuania. He was crowned as King of Lithuania in 1253 and assassinated ten years later. His known family relations end with children; there is no data on his great-grandchildren or any relations with the Gediminids,[1] a dynasty of sovereigns of Lithuania and Poland that started with Butigeidis ca. 1285 and ended with Sigismund II Augustus in 1572.
Historians have to make considerable assumptions trying to reconstruct the full family tree because of extremely scarce written sources about the early history of Lithuania. The matter is further complicated by the 16–17th century genealogies, most famously the Bychowiec Chronicle, that mixed legends and facts into one.[2] The legends about Palemonids, a noble family from the Roman Empire who settled in Lithuania and gave rise to the Duchy, are quite popular and widespread in these genealogies. The real historical data comes from the Russian and Livonian chronicles, most important of these being the Hypatian Codex.