List of Cardinal Creations of Gregory X.

In the course of his pontificate (1271–1276), Pope Gregory X made the creation of five cardinals in a consistory .

Consistory on June 3, 1273

Pedro Julião , Archiater of the Pope and Archbishop of Braga - Cardinal Bishop of Frascati, then (September 15, 1276) Pope John XXI., † May 20, 1277
Vicedomino de Vicedominis , nephew of the Pope , Archbishop of Aix - Cardinal Bishop of Palestrina, † September 6, 1276
Bonaventure , OFM , Minister General of the Franciscans - Cardinal Bishop of Albano, † July 15, 1274
Pierre de Tarentaise , OP , Archbishop of Lyon - Cardinal Bishop of Ostia e Velletri, then (January 21, 1276) Pope Innocent V, † June 22, 1276
Bertrand de Saint-Martin , OSB , Archbishop of Arles - Cardinal Bishop of Sabina, † March 28, 1278 (?)

Konrad Eubel : Hierarchia Catholica Medii Aevi. Vol. 1. 1913.
Richard Stapper: Pope John XXI. Church history studies, Münster 1898.
Richard Sternfeld: The Cardinal Johann Gaetan Orsini (Pope Nicholas III.) 1244-1277. Berlin 1905.
Lorenzo Cardella: Memorie storiche de 'cardinali della Santa Romana Chiesa. Vol. 2. Rome 1793.

↑ Eubel, p. 9. After Cardella, p. 8–9 (following him Salvador Miranda: Visconti, Giovanni. In: Salvador Miranda : The Cardinals of the Holy Roman Church. (Website of the Florida International University , English), but with Doubt), two other cardinals were created by Gregory X around 1275: his nephew Giovanni Visconti (as Cardinal Bishop of Sabina), and Teobaldo de Ceccano , Abbot of Fossanova (as cardinal priest). But Giovanni Visconti as Cardinal Bishop of Sabina is not possible because of Bertrand at this time and his existence is not guaranteed by any document known to us; Abbot Teobaldo von Fossanova is nowhere referred to in contemporary sources as a cardinal (see Stapper, pp. 35–36, note 3; and Sternfeld, pp. 200–201, note 35; cf. also Eubel, p. 9, note 3 ).