Namesakes
Fictional Characters from Books:
1 character
Don Quixote (a.k.a. Alonso) 1605 Don Quixote 
Notable Athletes:
1 soccer
(soccer) Raúl Jiménez (middle name Alonso) 1991-
Notable Explorers and Adventurers:
1 explorer
Alonso de Ojeda c. 1466-c. 1515
Olympic Medalists:
1 gold
(gold) Raúl Jiménez (middle name Alonso) 2012 football
Saints:
3 blessed, 3 saints
Blessed Alonso de Orozco Mena 1500-1591
Saint Alonso Rodríguez 1531-1617
Blessed Alonso Rodríguez 1598-1628
Blessed Alonso de Mena ?-1622
Saint Lucas Alonso Gorda ?-1633
Saint Mateo Alonso Leziniana ?-1745
Shakespearian Characters:
1 character
King Alonso The Tempest