Xantes Mariales
| Dominican, b. about 1580; d. at Venice in April, 1660 |
Xaver Ehrenbert Fridelli
| Jesuit missionary and cartographer, b. at Linz, Austria, March 11, 1673; d. at Peking, June 4, 1743 |
Xaverian Brothers
| An institute of lay-men, founded under episcopal approbation by Theodore James Ryken, in Belgium, in the year 1839 |
Xavier Barbier de Montault
| Historiographer b. at Loudun, February 6, 1830; d. at Blaslay, Vienne (France), March 29, 1901 |
Xavier de Maistre
| French novelist, b. at Chambery, Savoy, in 1763; d. at St. Petersburg, June 12, 1852 |