The 1285 papal election, convened in Viterbo after the death of Pope Martin IV, elected Cardinal Giacomo Savelli, who took the name of Honorius IV. Because of the suspension of the Constitution Ubi periculum by Adrian V in 1276, this election was technically, perhaps, not a papal conclave. In fact, for the first time since the tedious Election of 1268–1271, the meetings were dominated neither by the Hohenstaufen nor Charles I of Naples. It may even be that the cardinals proceeded so swiftly to an election with the intention of forestalling any intervention from Naples.

The 1280–81 papal election elected Simon de Brion, who took the name Pope Martin IV, as the successor to Pope Nicholas III.