Thomas Vaughan (died 1483) Thomas Vaughan (died 1483) Sir Thomas Vaughan (c. 1410 – June 1483) was a Welsh statesman and diplomat, who rose to prominence before and during the Wars of the Roses. He began as an adherent of Jasper Tudor and King Henry VI of England, and was appointed to several offices by Henry. He was nonetheless a Yorkist by inclination, as were many Welshmen of the time. After the Yorkist victory in 1461 he became a loyal and important servant of King Edward IV. In 1483, he was executed by Richard III as part of his seizure of the throne. Vaughan
Elizabeth of York December 1483, in the cathedral of Rennes, Henry Tudor swore an oath promising to marry her and began planning an invasion. In 1484, Elizabeth of York and her sisters left Westminster Abbey and returned to court when Elizabeth Woodville was apparently reconciled with Richard III, which may – or may not – suggest that Elizabeth Woodville believed Richard III to be innocent of any possible role in the murder of her two sons (although this is unlikely owing to her involvement in Henry Tudor's failed invasion of October 1483). It was rumoured that Richard III intended to marry Elizabeth of