John Holland, 1st Duke of Exeter John Holland, 1st Duke of Exeter John Holland, 1st Duke of Exeter (c. 1352 – 16 January 1400) also 1st Earl of Huntingdon, was an English nobleman, a half-brother of King Richard II (1377–1399), to whom he remained strongly loyal. He is primarily remembered for being suspected of assisting in the downfall of King Richard's uncle Thomas of Woodstock, 1st Duke of Gloucester (1355–1397) (youngest son of King Edward III) and then for conspiring against King Richard's first cousin and eventual deposer, Henry Bolingbroke, later King Henry IV (1399–1413). He was the third son of Thomas Holland, 1st Earl of
Pontefract Castle on 28 January 1569, travelling between Wetherby and Rotherham. Royalists controlled Pontefract Castle at the start of the English Civil War. The first of three sieges began in December 1644 and continued until the following March when Marmaduke Langdale, 1st Baron Langdale of Holme arrived with Royalist reinforcements and the Parliamentarian army retreated. During the siege, mining and artillery caused damage and the Piper Tower collapsed as a result. The second siege began on 21 March 1645, shortly after the end of the first siege, and the garrison surrendered in July after hearing the news of Charles I's defeat at