Question: Which Pope did the external cardinal serve as a diplomat from the see whose current Archbishop is Luigi Moretti ?

text: External cardinal
Lists of the `` external '' cardinals -- Cardinals who renounced their cardinalate after appointments to the external bishoprics
The list is arranged chronologically by the date of appointment of the cardinal to the external episcopal see and his renouncement of the cardinalate .
In the category of the members of the College of Cardinals in the central Middle Ages (11th to 13th century), an external cardinal (as opposed to a curial cardinal) was a Cardinal of the Holy Roman Church who did not reside in the Roman Curia, because of simultaneously being a bishop of the episcopal see other than suburbicarian, or abbot of an abbey situated outside Rome. In the wider sense, it may also concern cardinals who were appointed to the external episcopal sees and resigned their memberships in the College of Cardinals with this appointment. As well, it can concern cardinals who were generally curial cardinals, but for some time exercised the posts of administrators or prelates of the external churches. Today, the great majority of the cardinals are archbishops of the main metropolitan dioceses of the world and reside in their countries. Apart from the exclusive right of the election of the new pope, their dignity is purely honorific. However, originally the College of Cardinals was simply a college of the clergy of the City of Rome, constituted of the bishops of the seven dioceses (called suburbicarian sees) bordering the diocese of Rome (cardinal-bishops), priests of the parochial churches of Rome (cardinal-priests) and deacons heading the ecclesiastical regions of the city of Rome (cardinal-deacons). Unlike today, the cardinals had real jurisdiction over the dioceses, parochial churches (called tituli) or deaconries to which they were attached. The phenomenon of the external cardinalate in the late Middle Ages constituted the first exception to the rule, that cardinals - members of the clergy of the diocese of Rome - cannot serve simultaneously in another, external church, which is now common practice.
Name Cardinalate External episcopate Notes
Johannes Cardinal-deacon ca . 960/1 Bishop of Narni 961-965 Future Pope John XIII 965-972
Friedrich Cardinal-priest in 1001 Archbishop of Ravenna 1001-1004
Airardus , O.S.B Cardinal-priest of unknown titulus attached to the Basilica of Saint Paul Outside the Walls 1050 Bishop of Nantes 1050-ca.1054/60 Expelled from his diocese ca . 1054 and died ca . 1060
Roberto Cardinal-priest of S. Marco in 1086 Bishop of Faenza 1086-1104 Pseudocardinal of Antipope Clement III
Herimannus , O.S.B Cardinal-priest of SS . IV Coronati 1080-1098 Bishop of Brescia 1087/98-1115 For eleven years ( 1087-98 ) he was simultaneously cardinal and bishop-elect , but after receiving episcopal consecration ( 1098 ) resigned his cardinalate . He was deposed as bishop in 1115 and died after 1116 . In 1100 Augustinus became new cardinal-priest of SS . IV Coronati
Bonussenior Cardinal-priest of S. Maria in Trastevere 1082-1098 Bishop of Reggio Emilia 1098-1118 By 1109 Odelricus was a new cardinal-priest of S. Maria in Trastevere
Alberto , O.S.B Cardinal-priest of S. Sabina 1091/95-1100 Archbishop of Siponto 1100-1116 By 1112 cardinal Albericus occupied his former titulus S. Sabina
Niccolo ( ? ) Cardinal-priest ca.1100/01 ( ? ) Archbishop of Brindisi 1101-1104 This archbishop of Brindisi is referred to as former cardinal only in one document of Pope Paschalis II , which , however , does not mention his name . Therefore , his identity remains uncertain
Bernardo degli Uberti , O.S.B.Vall Cardinal-priest of S. Crisogono 1098/99-1106 Bishop of Parma 1106-1133 Future saint ; as cardinal , he was also abbot of Vallombrosa 1098-1106 ( see table above ) . In 1109/10 Berardo de Marsi became new cardinal-priest of S. Crisogono
Richard de Saint-Victor , O.S.B Cardinal-priest 1078-1106 Archbishop of Narbonne 1106-1121 As cardinal-priest , he was also abbot of St.-Victor at Marseille 1079-1106 ( see table above )
Giovanni da Piacenza Cardinal-priest 1096-1106 Bishop of Gubbio 1106-before 1126 As cardinal he acted for some time ( 1101-03 ) as vicar and administrator of the see of Piacenza ( see table below )
Landolfo Cardinal-priest of S. Lorenzo in Lucina 1106-1108 Archbishop of Benevento 1108-1119 In 1116 Gregorio of Siena became new cardinal-priest of S. Lorenzo in Lucina
Berardo de Marsi , O.S.B Cardinal-deacon of S. Angelo 1105/07-1109/10 , cardinal-priest of S. Crisogono 1109/10 Bishop of Marsi 1110-1130 Future saint In 1111 Gregorio of Lucca was appointed new cardinal-priest of S. Crisogono
Riso Cardinal-priest of S. Lorenzo in Damaso 1103/05-1112 Archbishop of Bari 1112-1118 In 1116 Deusdedit became new cardinal-priest of S. Lorenzo in Damaso
Romualdo Cardinal-deacon of S. Maria in Via Lata ca.1110-1121 Archbishop of Salerno 1121-1136 In 1123 Uberto Rossi Lanfranchi replaced him in the deaconry of S. Maria in Via Lata . After 1130 he joined the obedience of Antipope Anacletus II
Baialardus Cardinal-deacon 1120-1121/22 Archbishop of Brindisi 1121/22-after 1130 ( 1144 ? ) Some sources erroneously say that he was named archbishop in 1118
Boso Cardinal-deacon ( before 1110-1113 ) , cardinal-priest of S. Anastasia 1113-1122 Bishop of Turin 1122-after 1125 In 1123 Teobaldo Buccapeccus became new cardinal-priest of S. Anastasia
Uberto Rossi Lanfranchi Cardinal-deacon of S. Maria in Via Lata 1123-1125/26 , cardinal-priest of S. Clemente 1125/26-1133 Archbishop of Pisa 1133-1137/38 For a few months he acted simultaneously as cardinal-priest and archbishop-elect , but after episcopal consecration ( September 1133 ) resigned his cardinalate
Balduino da Pisa , O.Cist Cardinal-priest of S. Maria in Trastevere 1137-1138 Archbishop of Pisa 1138-1145/46 In 1140 he was succeeded by Gregorio della Suburra as cardinal-priest of S. Maria in Trastevere
Griffone Cardinal-priest of S. Pudenziana 1138-1139 Bishop of Ferrara 1139-after 1156 In 1140 Presbitero succeeded him as cardinal-priest of S. Pudenziana