Prince Consort
From Tardis Wiki, the free Doctor Who reference
A prince consort was the husband of a reigning queen who was not himself a king in his own right. Prince Albert was the consort of Queen Victoria. (TV: Tooth and Claw) In an alternate timeline of his own making, John Hart became prince consort when he married Victoria. He ultimately became king of the British Empire upon her death. (AUDIO: The Death of Captain Jack)