The king who exploded at his funeral was King Bolesław II the Bold of Poland.
Bolesław II, also known as Bolesław the Bold, reigned from 1058 to 1079. His death was shrouded in mystery, with some sources claiming he was poisoned and others stating he died of natural causes.
The most intriguing account, however, tells of a gruesome explosion that occurred during his funeral. According to this narrative, the king's body was laid out in a church for public viewing. However, during the service, the body suddenly exploded, showering the mourners with blood and entrails.
While this story has been passed down through generations, historians consider it to be a legend. There is no concrete evidence to support the claim of an explosion, and it is likely a fabrication meant to add a dramatic element to the king's death.
Despite the lack of historical proof, the legend of King Bolesław II's exploding corpse has persisted for centuries, becoming a popular topic of discussion and debate among historians and folklore enthusiasts.