Princes in the Tower act stated that Edward IV and Elizabeth Woodville's marriage was invalid because of Edward's pre-contract of marriage with Lady Eleanor Butler. Gloucester was crowned King Richard III of England on 3 July. The declaration of the boys' illegitimacy has been described by Rosemary Horrox as an ex post facto justification for Richard's accession. Dominic Mancini, an Italian friar who visited England in the 1480s and who was in London in the spring and summer of 1483, recorded that after Richard III seized the throne, Edward and his younger brother Richard were taken into the "inner apartments of the Tower" and
Princes in the Tower on the crown. In more recent times the theory that Warbeck was Richard has been endorsed by Annette Carson, a freelance writer with a "lifelong interest" in Richard III. She suggested that Richard smuggled the princes abroad to the custody of their aunt, the Duchess of Burgundy, and they were raised there under false identities. Baldwin's theory was that by having removed them from sight to prevent them being a focus for opposition, he was then unable to bring them back to court to scotch rumours of their murder without once again having them become a threat. The political reality