Elizabeth of York

Elizabeth was the oldest child of Edward IV of England and Elizabeth Woodville, and thus the older sibling of the so-called "Princes in the Tower". (AUDIO: The Kingmaker)

She later married Henry VII and was the mother of Henry VIII. (TV: The Coach with the Dragon Tattoo)

Behind the scenes
The Kingmaker doesn't actually use the full title "Elizabeth of York", but offers no better term than her real world designation.