Career
Larraín Valdivieso was of Basque descent. In 1950, Larraín Valdivieso was ordained as a priest at the age of 25. On September 12, 1966 he was appointed as Bishop of Santiago de Chile, Chile.
He was also appointed as Titular Bishop of Theudalis.
He resigned as Bishop of Santiago de Chile in 1968. He died on December 20, 2008.