Not wanting the legitimacy of his wife or her claim as heiress of Edward IV called into question, prior to the marriage he had repealed the Titulus Regius which had previously declared the princes (and Elizabeth) illegitimate.
For at undgå enhver tvivl om hendens legitimitet og krav som Edvard 4. arving, ophævede han inden ægteskabet Titulus Regius, der tidligere havde erklæret prinserne (og Elizabeth) illegitime.