The papal election of 1159 followed the death of which pope, who ruled from 1154 until 1159?
Papal election, 1159 The Papal election of 4–7 September 1159 followed the death of Pope Adrian IV. It resulted in a double election. A majority of the cardinals elected Cardinal Rolando of Siena as Pope Alexander III, but a minority refused to recognize him and elected their own candidate Ottaviano de Monticelli, who took the name Victor IV, creating a schism which lasted until 1178.
Papal conclave, 1458 The Papal conclave of 1458 (August 16–19, 1458) convened after the death of Pope Callixtus III, elected as his successor Cardinal Enea Silvio Piccolomini, who took the name Pius II.