Namesakes for CONSTANTINE:
  Kings and Tsars of Bulgaria: 2 tsars
      Tsar Konstantin I (a.k.a. Constantine)   1257-1277
      Tsar Konstantin II (a.k.a. Constantine)   1397-1422
  Bishops of Rome and the Popes: 1 antipope, 1 pope
      Pope Constantine   708-715
      Antipope Constantine II   767
  Roman and Byzantine Emperors: 11 emperors
      Emperor Constantine   307-337
      Emperor Constantine II   337-340
      Emperor Constantine III   641
      Emperor Constantine IV   668-685
      Emperor Constantine V   741-775
      Emperor Constantine VI   780-797
      Emperor Constantine VII Porphyrogenitus   912-959
      Emperor Constantine VIII   963-1028
      Emperor Constantine IX Monomachus   1042-1055
      Emperor Constantine X Ducas   1059-1067
      Emperor Constantine XI Dragases   1449-1453
  Grand Dukes and Tsars of Russia: 1 duke
      Duke Konstantin (a.k.a. Constantine)   1216-1218
  Saints: 3 saints
      Saint Constantine the Great
      Saint Constantine
      Saint Constantine
  Kings and Queens of Scotland: 4 kings
      King Causantín mac Fergus (a.k.a. Constantine)   781-820
      King Causantín I (a.k.a. Constantine)   863-977
      King Causantín II (a.k.a. Constantine)   900-943
      King Causantín III (a.k.a. Constantine)   995-997