| leo x | (n) son of Lorenzo de'Medici and pope from 1513 to 1521 who excommunicated Martin Luther and who in 1521 bestowed on Henry VIII the title of Defender of the Faith (1475-1521), Syn. Giovanni de'Medici |
| leo xiii | (n) Italian pope from 1878 to 1903 who was interested in the advancement of learning and who opened the Vatican secret archives to all scholars, Syn. Giovanni Vincenzo Pecci, Gioacchino Pecci |