Non-electors
Pope Martin V initiated the custom of creating cardinals without publishing their names at the time (similar to in pectore). At the time of his death the names of two of his secret nominees remained unpublished and, therefore, they were not regarded as members of the Sacred College. They were Juan Casanova, administrator of Elne, and Guillaume Ragenel de Montfort, bishop of Saint-Malo, and they both were later created again by Eugene IV. However, also two cardinals created initially in pectore but later published were not allowed to participate in this conclave, because some necessary rites had not been accomplished at the death of Martin V:
| Elector | Nationality | Cardinalatial Title | Elevated | Elevator | Notes |
|---|---|---|---|---|---|
| Domingo Ram, O.C.R.S.A. | Catalonian | Priest of SS. Giovanni e Paolo | 1426, May 24, published on November 8, 1430, but without finishing the rite of his investiture as cardinal | Pope Martin V | Administrator of Lerida |
| Domenico Capranica | Capranica Prenestina, Papal States | Deacon of S. Maria in Via Lata | 1426, May 24, published on November 8, 1430, but without finishing the rite of his investiture as cardinal | Pope Martin V | Administrator of Fermo; Governor of Perugia and of the Duchy of Spoleto |
Read more about this topic: Papal Conclave, 1431