Thomas Vaughan Welsh Yorkist, died circa 1493 (d. 1493) Parents Denise ferch Thomas ap Philip Fychan of Iscoed or Tyle-Glas Roger Vaughan of Tretower Children Hari ap Thomas Vaughan Elizabeth Vaughan Catherine Vaughan, of Tretower Siblings Eleanor Vaughan Catherine Vaughan, of Tretower Gwenllian ferch Roger Vaughan Roger Vaughan Lewis II ap Roger Vaughan, of Merthyr Tudful