Complex sentence: Buenaventura's father, Antonio, was regional treasurer for the Northern provinces of Luzon and his mother, Consuelo Baltasar, was something the devoted homemaker who eventually co-founded a rural bank in Aringay, La Union.
Split into simpler sentences: Buenaventura's father, Antonio, was regional treasurer for the Northern provinces of Luzon. His mother, Consuelo Baltasar, was a devoted homemaker who nonetheless eventually co-founded a rural bank in Aringay, La Union.