King Wenceslaus IV was a Czech king who ruled from 1378 to 1419. He was the son of Charles IV, the Holy Roman Emperor, and was known for his struggles with the nobility and his inability to maintain control over his kingdom. His reign was marked by political instability and conflicts, particularly with the Hussites, a religious reform movement that emerged during his time. Wenceslaus IV was also a member of the Luxembourg dynasty. Despite his royal status, he faced challenges in governance and was eventually deposed by his own nobles. His reign ended with his death in 1419, leaving a legacy of turmoil in the region.