Sir Thomas l'Arcedekne, 1st Lord Arcedekne held the office of Governor of Tintagel Castle in 1312. He held the office of Sheriff of Cornwall from 1313 to 1314. He was created 1st Lord Arcedekne [England by writ] on 15 May 1321. None of his descendants were ever summoned to Parliament in respect of his title, and it is held to have fallen into abeyance.