Cardinal-electors
There were probably 30 cardinals in the Sacred College of Cardinals at the beginning of December 1154, but it seems that no more than 25 (perhaps even fewer) participated in the election:
| Elector | Cardinalatial Title | Elevated | Elevator | Notes |
|---|---|---|---|---|
| Imar, O.S.B.Cluny | Bishop of Tusculum | 13 March 1142 | Innocent II | Dean of the Sacred College of Cardinals |
| Guarino Foscari, Can.Reg. | Bishop of Palestrina | 22 December 1144 | Lucius II | Cardinal-nephew |
| Nicholas Breakspeare, Can.Reg. | Bishop of Albano | 16 December 1149 | Eugenius III | Elected Pope Adrian IV |
| Hugo, O.Cist. | Bishop of Ostia e Velletri | 21 December 1151 | Eugenius III | |
| Gregorio della Suburra | Bishop of Sabina | 1 March 1140 | Innocent II | |
| Cencio de Gregorio | Bishop of Porto e Santa Rufina | 2 March 1151 | Eugenius III | |
| Guido Florentinus | Priest of S. Crisogono | 1139 | Innocent II | Protopriest |
| Ubaldo Allucingoli | Priest of S. Prassede | 16 December 1138 | Innocent II | Future Pope Lucius III (1181-1185) |
| Ottaviano de Monticelli | Priest of S. Cecilia | 25 February 1138 | Innocent II | Future Antipope Victor IV (1159-1164) |
| Manfredo | Priest of S. Sabina | 17 December 1143 | Celestine II | |
| Ariberto | Priest of S. Anastasia | 17 December 1143 | Celestine II | |
| Astaldo degli Astalli | Priest of S. Prisca | 17 December 1143 | Celestine II | |
| Giulio | Priest of S. Marcello | 19 May 1144 | Lucius II | |
| Ubaldo Caccianemici, Can.Reg. | Priest of S. Croce in Gerusalemme | 19 May 1144 | Lucius II | Cardinal-nephew |
| Guido Puella | Priest of S. Pudenziana | 22 December 1144 | Lucius II | |
| Bernard, Can.Reg. | Priest of S. Clemente | 22 December 1144 | Lucius II | Archpriest of the Vatican Basilica |
| Rolando | Priest of S. Marco and Chancellor of the Holy Roman Church | 22 September 1150 | Eugenius III | Future Pope Alexander III (1159-1181) |
| Gerard | Priest of S. Stefano al Monte Celio | 2 March 1151 | Eugenius III | |
| Giovanni da Sutri | Priest of SS. Giovanni e Paolo | 21 February 1152 | Eugenius III | Rector of Campagna |
| Enrico da Pisa, O.Cist. | Priest of SS. Nereo ed Achilleo | 21 February 1152 | Eugenius III | |
| Giovanni Morrone | Priest of SS. Silvestro e Martino | 23 May 1152 | Eugenius III | |
| Rodolfo | Deacon of S. Lucia in Septisolio | 17 December 1143 | Celestine II | |
| Guido di Crema | Deacon of S. Maria in Portico | 21 September 1145 | Eugenius III | Future Antipope Paschal III (1164-1168) |
| Giovanni Gaderisio, Can.Reg. | Deacon of SS. Sergio e Bacco | 22 September 1150 | Eugenius III | |
| Ottone da Brescia | Deacon of S. Nicola in Carcere | 21 February 1152 | Eugenius III |
Five electors were created by Pope Innocent II, four by Pope Celestine II, five by Pope Lucius II, eleven by Pope Eugenius III.
Read more about this topic: Papal Election, 1154