The Goldsmith, his Rothschild wife and the American rapper Ben Goldsmith, 31, was led away by police from the £20 million home in Kensington, west London, that he shares with his wife Kate, 29, a music producer and the niece of the banker Lord Rothschild. It was reported that there had been an argument over Mr Goldsmith's concerns about his wife's supposedly deepening friendship with Jay Electronica, 35, an American rap singer. In contrast to the wealthy background of the Goldsmiths, Jay Electronica - real name Timothy Elpardo Thedford - was born in a poor, crime-ridden area of New Orleans. Mr Goldsmith, an Eton-educated financier, later accepted a caution. The incident was said to have involved him kicking out at one of his children's toys, which struck his wife, who allegedly suffered bruising to her leg. Mrs Goldsmith, inherited a fortune from her father Amschel Rothschild, who hanged himself in Paris in 1996. It is believed she has been spending increasing amounts of time in Los Angeles, developing her music management company and record label Roundtable. Scotland Yard confirmed that they had been called to a domestic disturbance at about 8am on Wednesday. A 31-year old man was arrested on suspicion of actual bodily harm. He was taken to a west London police station and later accepted a caution. Electronica, who has a three-year-old daughter with the American R&B singer Erykah Badu, was described by Ben Harris, his former publicist as "a lovely guy, a brilliant artist."