Roger Vaughan of Tretower

Sir Roger Vaughan (died 1471) of Tretower Court, was the son of Welsh noblewoman Gwladys ferch Dafydd Gam and Sir Roger Vaughan of Bredwardine, who fought and died with Gwladys's father, Dafydd Gam in the Battle of Agincourt in 1415.

His first wife, Denise[2] (her name is sometimes given as Cicely),[3] daughter of Thomas ab Philip Vychan, of Talgarth, celebrated in one of the poems of Lewus Glyn Cothi, died not long after Roger's return from the Battle of Agincourt.

In later years, though, Roger and his brothers Watkin and Thomas switched allegiances, becoming staunch Yorkists.

[6] Roger was given positions of responsibility and knighted by 23 March 1465 for his activities supporting the Yorkist faction:[1][3] Roger is thought to have received the fortified manor, Tretower Court, as a gift from his half-brother William Herbert, 1st Earl of Pembroke.

[1] In May 1471, Roger was sent by King Edward to capture Jasper Tudor; however, Roger instead fell into Jasper's hands and he was consequently beheaded at Chepstow, which resulted in further acrimonious sentiments towards the Tudors by the Vaughans and Herberts.