By 1453 the overlordship of the island was held by James Butler, 5th Earl of Ormond, and in 1460 the advowson was exercised by Margaret Talbot, Countess of Shrewsbury. Margaret Talbot (née de Beauchamp) was a distant cousin of James Butler as both were descended from different sons of Thomas de Beauchamp, 11th Earl of Warwick. In other words James Butler (via his mother Joan Butler, Countess of Ormond (née Beauchamp) and his grandfather William Beauchamp, 1st Baron Bergavenny, whilst Margaret Talbot was daughter of Elizabeth de Beauchamp (née Berkeley) and the granddaughter of Thomas de Beauchamp, 12th Earl of Warwick. In short, James Butler's and Margaret Talbot's de Beauchamp grandparents were brothers. Of note is that Margaret Talbot was the daughter of Elizabeth Berkeley, Countess of Warwick (and her husband Richard de Beauchamp, 13th Earl of Warwick) from which discord in the Berkeley family was to emerge (see below). Furthermore, Elizabeth Berkeley was the only daughter of Thomas de Berkeley, 5th Baron Berkeley, showing that ownership still resided to some extent in the Berkeley family since Maurice de Berkeley took over the island in 1315 - Margaret Talbot was the great, great, great granddaughter of Maurice de Berkeley.