Antoine (Spanish: Antonio, Basque: Antonio, 22 April 1518 – 17 November 1562), sometimes called Antoine of Bourbon, was King of Navarre from 1555 until his death in 1562 as the husband and co-ruler of Queen Jeanne III. He was the first monarch of the House of Bourbon, of which he became head in 1537. Despite being first prince of the blood in France, Navarre lacked political influence and was dominated by King Henry II of France's favourites, the Montmorency and Guise families. When Henry II died in 1559, Navarre found himself sidelined in the Guise-dominated government, and then compromised by his brother's treason. When Henry's son, King Francis II of France, soon died in turn, Navarre returned to the centre of politics, becoming Lieutenant-General of France and leading the army of the crown in the first of the French Wars of Religion. He died of wounds sustained during the Siege of Rouen. He was the father of King Henry IV, France's first Bourbon king.
