King William III of England (William of Orange) lands in Ireland to confront the former King James II.

William III, also 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 1672, and King of England, Ireland, and Scotland from 1689 until his death in 1702. He ruled Great Britain and Ireland with his wife, Queen Mary II, and their joint reign is known as that of William and Mary.

James II and VII was King of England and Ireland as James II and King of Scotland as James VII from the death of his elder brother, Charles II, on 6 February 1685, until he was deposed in the 1688 Glorious Revolution. The last Catholic monarch of England, Scotland, and Ireland, his reign is now remembered primarily for conflicts over religion. However, it also involved struggles over the principles of absolutism and divine right of kings, with his deposition ending a century of political and civil strife by confirming the primacy of the English Parliament over the Crown.