Kate Rothschild pictured with Jay Electronica The dispute came to a head when police arrested Mr Goldsmith, son of the billionaire banker Sir James Goldsmith, on suspicion of actual bodily harm. It was reportedly a confrontation over Miss Rothschild's contact with Electronica, real name Timothy Elpadaro Thedford. She later said her marriage "went bad a few years ago" and said no one had "any idea what I went through along with my husband." She had been in a relationship with Mr Goldsmith since she was 17. As members of two of the most eminent banking dynasties, the pair will face a costly divorce as they carve up their assets. It is also likely to cause further friction as Miss Rothschild's sister Alice is in a relationship with Mr Goldsmith's brother, Conservative MP Zac Goldsmith.