Sometimes known as Watkyn Lloyt, Watkin had land at Tirmarchog near Trecastle on the western edge of the Lordship of Brecknock. He was related by marriage to Sir Roger Vaughan of Bredwardine, who died fighting at the Battle. The land Watkin Lloyd once owned is now called Ynys Marchog (‘Water Meadow of the Knight’). It is likely that Watkin was the captain of the contingent raised in the Lordship of Brecknock and served as a man-at-arms in the Battle.
Henry V’s forces included 500 Welsh archers and 23 men-at-arms. Of that number, 10 men-at-arms, 13 mounted archers and 146 foot archers formed the contingent from the Brecon area. Despite its small size, Trecastle played its part, supplying as many as 10 men to the King’s army.
A small village with a big history
Trecastle takes its name from the castle built here in the early 11th century. This Norman motte and bailey structure saw plenty of action, with Edward I of England even spending a number of days here in an effort to suppress a revolt. The remains of the rough-and-ready motte and bailey can still been seen in the village and are the biggest and best preserved of their kind in the Brecon Beacons National Park.