A king killed defending the Christian faith or executed for his religious beliefs; specifically. Charles I (1600–49), believed by some members of the Anglican Church to have been executed for religious reasons.
Origin
Mid 17th century.
Definition of martyr-king in US English:
martyr-king
noun
A king killed defending the Christian faith or executed for his religious beliefs; specifically. Charles I (1600–49), believed by some members of the Anglican Church to have been executed for religious reasons.