Santiago Larrain Vicuña

Santiago was born in 1666.  Santiago's father was Juan Larrain Sosaya and his mother was Maria Gracia de Vicuña y Aranibar.  His paternal grandparents were Beltran Larrain Galarza and Maria Sosaya Jubindo; his maternal grandparents were Miguel Vicuña and Maria Aranibar. He had two half-brothers named Santiago and Santiago.