Papal conclave, 1378 Cardinal electors Cardinal electors

| Elector | Nationality | Cardinalatial_order_and_title | Elevated | Elevator |
|---|---|---|---|---|
| Pierre de Vergne | French | Cardinal-deacon of S. Maria in Via Lata | 1371, May 30 | Gregory XI |
| Pedro Martínez de Luna y Gotor | Aragonese | Cardinal-deacon of S. Maria in Cosmedin | 1375, December 20 | Gregory XI |