JUAN EMILIO BOTIN
Founder of Banco Santander in 1857. Bank finances growing transatlantic trade through the northern Spanish port of Santander.
Founder's son. Expands Banco Santander into a regional Spanish player. Steps down at age 84.
Grandson of the founder. Joins the bank at age 24 and takes control in 1986. Builds the bank into a powerhouse through mergers and acquisitions in Spain and Latin America.
Also a grandson of the founder. Chairman of Bankinter, one of Spain's most innovative banks, has just joined Emilio at Santander as first vice-chairman.
ANA PATRICIA BOTIN
Great-granddaughter of the founder. Built up the investment banking and Latin American businesses for Santander in the 1990s but was forced out following merger with Banco Central Hispano in 1999. Has just returned to become CEO at Banesto, a bank owned by Santander.
Data: BusinessWeek, company reports