German Kings and Holy Roman Emperors: 1 king
King Alfonso of Castile   1257-1273  
Italian Presidents and Prime Ministers: 1 prime minister
(prime minister) Alfonso La Marmora   1864-1866  
Nobel Prize Winners: 1 peace
(peace) Alfonso García Robles   1982  
Notable Athletes: 1 soccer
(soccer) Marcelo Díaz (a.k.a. Alfonso)   1986-  
Notable Explorers and Adventurers: 1 explorer
Afonso de Albuquerque (a.k.a. Alfonso)   1453-1515  
Notable Filmmakers: 1 director
Alfonso Cuarón   1961-  
Olympic Medalists: 1 gold
(gold) Alfonso Menéndez Vallín   1992   archery - team  
Oscar Award Winners: 1 director
(director) Alfonso Cuarón   2013; 2018   Gravity; Roma  
Saints: 3 blessed, 1 saint
Blessed Alfonso de Baena   ?-1570  
Blessed Alfonso Pacheco   ?-1583  
Saint Alfonso Liguori   1696-1787  
Blessed Alfonso Maria Fusco   1839-1910  
Spanish Kings and Queens: 13 kings
King Alfonso VI the Valiant (Castile)   1072-1073  
King Alfonso I the Warrior (Aragon)   1104-1134  
King Alfonso VII the Emperor (Castile)   1126-1157  
King Alfonso VIII the Noble (Castile)   1158-1214  
King Alfonso II the Chaste (Aragon)   1164-1196  
King Alfonso IX (Leon)   1188-1230  
King Alfonso X the Wise (Castile)   1252-1284  
King Alfonso III (Aragon)   1285-1291  
King Alfonso XI the Just (Castile)   1312-1350  
King Alfonso IV the Good (Aragon)   1327-1336  
King Alfonso V the Magnanimous (Aragon)   1416-1458  
King Alfonso XII   1874-1885  
King Alfonso XIII   1885-1931