Hvem giftet seg med Anna Mazowiecka?

Michael Žygimantaitis (Lithuanian: Mykolas Žygimantaitis; Polish: Michał Bolesław Zygmuntowicz; before 1406 – shortly before February 10, 1452) was a pretender to the throne of the Grand Duchy of Lithuania and the last male descendant of Kęstutis, Grand Duke of Lithuania.