George Barclay led an unsuccessful attempt to ambush and kill William III and II of England, Scotland and Ireland in early 1696.

William III, also widely known as William of Orange, was the sovereign Prince of Orange from birth, Stadtholder of Holland, Zeeland, Utrecht, Guelders, and Overijssel in the Dutch Republic from the 1670s, and King of England, Ireland, and Scotland from 1689 until his death in 1702. As King of Scotland, he is known as William II. He ruled Britain and Ireland alongside his wife, Queen Mary II, and their joint reign is known as that of William and Mary.