Namesakes
Bishops of Rome and the Popes:
1 pope
Eusebius 309-310 
Other Royalty:
1 prince
Karl Eusebius, Prince of Liechtenstein 1627-1684 Liechtenstein
Saints:
6 saints
Saint Eusebius ?-65
Saint Eusebius 283-371
Saint Eusebius ?-310
Saint Eusebius of Samosata ?-379
Saint Eusebius of Cremona ?-423
Saint Eusebius ?-884