What noble family was XXX part of?
Jobst of Moravia
Jobst of Moravia (Czech: Jošt Moravský or Jošt Lucemburský; German: Jo(b)st or Jodokus von Mähren; c. 1354 -- 18 January 1411), a member of the House of Luxembourg, was Margrave of Moravia from 1375, Duke of Luxembourg and Elector of Brandenburg from 1388 as well as elected King of Germany (King of the Romans) from 1410 until his death.
House of Luxembourg