1159 papal election

The 1159 papal election (held 4–7 September) followed the death of Pope Adrian IV. It resulted in a double papal 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 that lasted until 1178.

1159 papal election

The 1159 papal election (held 4–7 September) followed the death of Pope Adrian IV. It resulted in a double papal 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 that lasted until 1178.