Alfonso

• Alphonso I of Portugal -- (1109-1185) "the Conqueror" (Afonso Henriques)
• Alphonso II of Portugal -- (1185-1223) "the Fat"
• Alphonso III of Portugal -- (1210-1279)
• Alphonso IV of Portugal -- (1291-1357)
• Alphonso V of Portugal -- (1432-1683)second king of the house of Braganza

Kings of Castile, Leon or Asturias

• Alfonso I of Asturias -- (739-757)
• Alfonso II of Asturias -- (789-842)
• Alfonso III of Leon -- (866-914) the Great
• Alfonso IV of Leon -- (924-931)
• Alfonso V of Castile -- (999-1028)
• Alfonso VI of Castile -- (1065-1109)
• Alfonso VII of Castile -- (1126-1157) the Emperor
• Alfonso VIII of Castile -- (1158-1214)
• Alfonso IX of Castile -- (1188-1230)
• Alfonso X of Castile -- (1252-1284) The Wise
• Alfonso XI of Castile -- (1312-1350) The Avenger

Kings of Aragon

• Alfonso I of Aragon -- (1104-1134) the Battler
• Alfonso II of Aragon -- (1162-1106)
• Alfonso III of Aragon -- (1285-1291) The Liberal
• Alfonso IV of Aragon -- (1327-1336) The Kind
• Alfonso V of Aragon -- (1416-1458) The Magnanimous

Kings of Spain

• Alfonso XII of Spain -- (1857-1885) king of Spain
• Alfonso XIII of Spain -- (1886-1931) king of Spain