Margarita Lopez Silva de Ceustermans, born February 1, 1921 in Argentina passed away January 10, 2013 in Houston, Texas. She is preceded in death by her husband, Ambassador for Argentina Andres Gabriel Ceustermans. A memorial mass will be held in her honor at 3 p.m. on Saturday, January 12, 2013 at St. Rose of Lima Catholic Church in Houston, Texas.