Complex sentence: He was a widower for three years, when he met Fermina Montojo de Torrontegui, the daughter of the Spanish admiral Patricio Montojo, who had led the Spanish fleet against Commodore George Dewey in the Battle of Manila Bay.
Split into simpler sentences: He was a widower for three years when he met Fermina Montojo de Torrontegui. She was the daughter of the Spanish admiral Patricio Montojo, who led the Spanish fleet against Commodore George Dewey in the Battle of Manila Bay.