Carolus Seimorus
Carolus Seimorus:

Carolus Seimorus (historicus) (1885–1963)
Carolus Seimorus (mortui 1665), baro of Trowbridge  (1621–1665)
Carolus Seimorus, sectus dux Somersetensis (1662–1748)
Carolus Seimorus (cricketer) (1855 - 1934)