The Earl of Yarmouth has lost a bitter court fight which pitted him against his aristocratic family over the running of their £85million estate.

William Seymour, 31, has been involved in a messy spat with his parents, the Marquess and Marchioness of Hertford, since 2018, when they objected to his wedding to Kelsey Wells – now Lady Yarmouth – a former director at Goldman Sachs.

The family displayed such ‘deep antagonism’ towards Lady Yarmouth, 39, that on their wedding day Lord Hertford told his son that ‘you can still call it off and we’ll send everyone home, just say no,’ Lord Yarmouth claimed in evidence to the High Court.

The court heard that Lord Yarmouth expected to inherit the family’s Ragley estate in Warwickshire, including the 110-room Palladian stately mansion his parents call home, when he turned 30.

By the age of just 21 he had already received more than £4.2million in land and property.