Namesakes
Bishops of Rome and the Popes:
16 popes, 2 antipopes
Gregory I the Great (a.k.a. Gregorius) 590-604 
Gregory II (a.k.a. Gregorius) 715-731
Gregory III (a.k.a. Gregorius) 731-741
Gregory IV (a.k.a. Gregorius) 827-844
Gregory V (a.k.a. Gregorius) 996-999
Gregory (a.k.a. Gregorius) 1012
Gregory VI (a.k.a. Gregorius) 1045-1046
Gregory VII (a.k.a. Gregorius) 1073-1085
Gregory (a.k.a. Gregorius) 1118-1121
Gregory VIII (a.k.a. Gregorius) 1187
Gregory IX (a.k.a. Gregorius) 1227-1241
Gregory X (a.k.a. Gregorius) 1271-1276
Gregory XI (a.k.a. Gregorius) 1370-1378
Gregory XII (a.k.a. Gregorius) 1406-1415
Gregory XIII (a.k.a. Gregorius) 1572-1585
Gregory XIV (a.k.a. Gregorius) 1590-1591
Gregory XV (a.k.a. Gregorius) 1621-1623
Gregory XVI (a.k.a. Gregorius) 1831-1846
Notable Politicians and Statespeople:
1 politician
Henk Kamp (middle name Gregorius) 1952-
Saints:
4 saints, 1 blessed
Saint Gregory the Great (a.k.a. Gregorius) c. 540-604
Saint Gregory II (a.k.a. Gregorius) 669-731
Saint Gregory III (a.k.a. Gregorius) ?-741
Saint Gregory VII (a.k.a. Gregorius) c. 1020-1085
Blessed Gregory X (a.k.a. Gregorius) 1210-1276