Thomas de Ros, 9th Baron de Ros – Wikipedia
A pair of medieval deaths… both beheaded for Treason!
1464 – Thomas de Ros, 9th Baron de Ros, English politician (b. 1427) A follower of the house of Lancaster, he was beheaded for treason. https://en.wikipedia.org/wiki/Thomas_de_Ros,_9th_Baron_de_Ros
1521 – Edward Stafford, 3rd Duke of Buckingham, Welsh politician, Lord High Constable of England (b. 1478) On of the last men with significant Plantagenet blood, having survived the last years of the War of the Roses was beheaded for treason.