Albert

Albert, Prince of Saxe-Coburg and Gotha more commonly known as Prince Albert, was the husband of Queen Victoria.

Biography
Together with George MacLeish, he created the light chamber, a device to combat the threat of "Werewolves" as dictated by legend. Albert had the Koh-i-Noor fashioned into the optimum shape to which it would best amplify the light of the Moon; this meant that it was constantly being re-cut and once finished, it was half its original size. Albert had this done so that the light chamber would best amplify the light that passed through it.

Albert died in 1861, (REF: Doctor Who: The Encyclopedia) leaving Victoria a widow. She missed him greatly and developed a taste for the occult, with the hope of regaining contact with him. (DW: Tooth and Claw)