 In 1441, control of the Kingdom of Naples was lost to Alfonso V of Aragon and the title thus was claimed by the kings of Spain, and after the War of the Spanish Succession both by the House of Bourbon and the House of Habsburg.The title is still in "de facto" use by the Spanish Crown, currently held by Felipe VI of Spain.It was also claimed by Otto von Habsburg as Habsburg pretender until 1958, and by the kings of Italy until 1946.