I. biographical name 1503-1564 Holy Roman emperor (1558-64), II. biographical name 1861-1948 king of Bulgaria (1908-18), III. biographical name 1016(or 1018)-1065 the Great king of Castile (1035-65); of León (1037-65)
FERDINAND I
Meaning of FERDINAND I in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012