The papal conclave of 1559 ( 5 September -- 25 December ) was convened on the death of Pope Paul IV .
The papal conclave of 1559 ( 5 September -- 25 December ) was elected Pope Pius IV as his successor .
The papal conclave of 1559 ( 5 September -- 25 December ) was convened on the death of Pope Paul IV and elected Pope Pius IV as his successor .