Conclave anni 1878 a die 19 Februarii usque ad insequentem diem 20 Februarii illius anni celebratum est. Pio Papa IX die 7 Februarii post pontificatum triginta duorum annorum, diuturnissimus historia, mortuo. Sexaginta unus cardinales qui conclavi interfuerunt post tres diribitiones secundo die suffragiorum Vincentium Ioachim Pecci elegerunt, illo tempore archiepiscopum Perusinum, qui sibi nomen Leonem XIII imposuit.

Papa Leo XIII anno 1878

Conclave anni 1878 inter conclavia saeculi XIX

recensere
  1823 1829 1830-31 1846 1878
Dies 28 36 50 3 2
Diribitiones ? 36 83 4 3
Cardinales electores 53 58 54 62 64
Cardinales qui in conclavi interfuerunt 49 50 45 50 61
Electus Annibalis Gengaensis Franciscus Xaverius Castiglioni Bartholomaeus Albertus Cappellarus Ioannes Maria Mastai-Ferretti Vincentius Ioachim Pecci
Aestimata suffragia ? ? ? ? 44
Nomen pontificale Papae electi Leo XII Pius VIII Gregorius XVI Pius IX Leo XIII
 
Vexillum Sedis Vacantis
Electiones papales:

1061 | 1073 | 1086 | 1088 | 1099 | 1118 | 1119 | 1124 | 1130 | 1143 | 1144 | 1145 | 1153 | 1154 | 1159 | 1181 | 1185 | 1187 (Oct.) | 1187 (Dec.) | 1191 | 1198 | 1216 | 1227 | 1241 | 1243 | 1254 | 1261 | 1264–1265 | 1268–1271 | 1276 | 1277 | 1280–1281 | 1285 | 1287–1288 | 1292–1294

Conclavia:

1276 (Ian.) | 1276 (Iul.) | 1294 | 1303 | 1304–1305 | 1314–1316 | 1334 | 1342 | 1352 | 1362 | 1370 | 1378 | 1389 | 1404 | 1406 | 1417 | 1431 | 1447 | 1455 | 1458 | 1464 | 1471 | 1484 | 1492 | 1503 (Sept.) | 1503 (Oct.) | 1513 | 1521–1522 | 1523 | 1534 | 1549–1550 | 1555 (Apr.) | 1555 (Maii) | 1559 | 1565–1566 | 1572 | 1585 | 1590 (Sept.) | 1590 (Oct.) | 1591 | 1592 | 1605 (Mar.) | 1605 (Maii) | 1621 | 1623 | 1644 | 1655 | 1667 | 1669–1670 | 1676 | 1689 | 1691 | 1700 | 1721 | 1724 | 1730 | 1740 | 1758 | 1769 | 1774–1775 | 1799–1800 | 1823 | 1829 | 1830–1831 | 1846 | 1878 | 1903 | 1914 | 1922 | 1939 | 1958 | 1963 | 1978 (Aug.) | 1978 (Oct.) | 2005 | 2013

 
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