Sigismund Kęstutaitis
LITHUANIAN NOBLE
Sigismund I Kestutian; Žygimantas Kęstutaitis, Grand Duke of Lithuania; Žygimantas Kęstutaitis, Grand Prince of Lithuania; Žygimantas Kęstutaitis, Prince of Lithuania; Žygimantas Kęstutaitis, Great Prince of Lithuania; Žygimantas Kęstutaitis of Lithuania; Zygimantas Kestutaitis of Lithuania; Zygimantas Kestutaitis, Grand Duke of Lithuania; Zygimantas Kestutaitis, Grand Prince of Lithuania; Sigismund I, Grand Duke of Lithuania; Zygimantas Kestutaitis, Great Prince of Lithuania; Zygimantas Kestutaitis, Prince of Lithuania; Zygimantas Kestutaitis, Duke of Lithuania; Grand Duke Sigismund I of Lithuania; Sigismund I of Lithuania; Zigmantas Kestutaitis; Žygimantas Kęstutaitis; Zygimantas I Kestutaitis; Zygimantas Kestutaitis; Zygmunt Kiejstutowicz; Žygimantas Kęstutatis; Sigismund Kestutaitis; Zygimantas Kestutatis
Sigismund Kęstutaitis (; ; ; ;136520 March 1440) was the Grand Duke of Lithuania from 1432 to 1440. Sigismund was his baptismal name, while his pagan Lithuanian birth name is unknown.