Sergio Badilla Castillo | Bernal Díaz del Castillo | Roberto Castillo Sandoval | Montealegre del Castillo | Jaime Castillo Velasco | Celso Advento Castillo | Castillo de San Marcos | Castillo de la Real Fuerza | Antonio Cánovas del Castillo | Abelardo Castillo | Juan del Castillo | José Videla Castillo | José Chavéz y Castillo | Isabella Castillo | Francisco Castillo Fajardo, Marquis of Villadarias | Eliecer Castillo | El Castillo | Castillo de Teayo, Veracruz | Castillo de Teayo | Castillo de San Pedro de la Roca | Susan Castillo | Sergio Rogelio Castillo | Roberto Castillo (baseball) | Roberto Castillo | Pedro del Castillo | Otto René Castillo | Nery Castillo | Monteagudo del Castillo | Marino Vinicio Castillo | ''La Giradilla'' on the watchtower of the Castillo de la Real Fuerza |
The bank was founded on August 20, 1917, in Ponce, Puerto Rico, by Mario Mercado, Amador Torres, Manuel Meiriño, Augusto Quiñones, Francisco Oliver, Antonio Morales, Juan Colón, José de Jesús, Francisco Forteza and Cándido Noriega.
The ceremony is reported to be taking place at the historic Ponce Cathedral in Ponce, Puerto Rico, with a reception at the also historic Castillo Serralles castle.