"Sigismund of Luxembourg[a] (15 February 1368 – 9 December 1437) was a monarch as King of Hungary and Croatia (jure uxoris) from 1387, King of Germany ...
from 1410, King of Bohemia from 1419, and Holy Roman Emperor from 1433 until his death in 1437, as well as prince-elector of Brandenburg (1378–1388 and 1411–1415). He was the last male member of the House of Luxembourg.
Sigismund was the son of Charles IV, Holy Roman Emperor and his fourth wife Elizabeth of Pomerania. He married Mary, Queen of Hungary in 1385 and was crowned King of Hungary soon after. He fought to restore and maintain authority to the throne. Mary died in 1395, leaving Sigismund the sole ruler of Hungary." - (en.wikipedia.org 22.02.2024)