William III was a Dutch monarch who ruled over England, Scotland, and Ireland from 1689 until his death in 1702. He was also known by several synonyms, such as William of Orange, King William, and Prince William of Orange. Additionally, he was called "William the Conqueror" due to his successful campaign against the Irish forces and his role in leading England to victory in the War of the Grand Alliance. Other terms used to refer to William III include "William III of England," "William III of Scotland," and "William II of Scotland," depending on the context and period. Despite his various titles and synonyms, William III remains an important figure in European history for his contribution to the balance of power and modern constitutional monarchy.