 It also appears to have been the belief of Elizabeth Woodville, who would go on to support Henry Tudor in his campaign against Richard III.One possible motive for Elizabeth Woodville subsequently making her peace with Richard and bringing her daughters out of sanctuary could be that Richard had to swear a solemn oath, before witnesses, to protect and provide for her surviving children, which made it much less likely they could be quietly murdered as it was believed their brothers had been.In line with this contemporary opinion many current historians, including David Starkey, Michael Hicks, Helen Castor and A. J. Pollard regard Richard himself as the most likely culprit.