Willem II, Prince of Orange I had read that Willem II died in a riot involving a bank in Amsterdam. However, I read something on the Internet that contradicted that story. Instead, Willem II was said to have died of Smallpox. In any case, he died before his son, "The Young Prince" was born in 1650. After Willem II died, Johan de Witt became the Stadholder. He had a profound influence on the course of the First and Second Anglo-Dutch Wars. After all, after the first war, Johan de Witt took soundings in the Thames, so in 1667, he pushed the admirals to stage the raid on the Medway and Harwich.