THE divorce lawyers for the Prince of Wales and Diana, Princess of Wales, have been hired by Sir Paul McCartney and his estranged wife in what is shaping up to be one of the most expensive and high- profile partings since the collapse of the royal marriage. Anthony Julius, who was the Princess?s lawyer and became a close friend in the 1996 divorce that saw her receive a ?£17 million settlement, will represent Lady McCartney, the former model Heather Mills. Fiona Shackleton, who acted for the Prince of Wales, will be in Sir Paul?s corner. Nicholas Mostyn, QC, whose successes have earned him the nickname Mr Payout, is also on Sir Paul?s legal team. Sir Paul, 64, is a much richer man than the Prince of Wales, with personal wealth estimated at ?£825 million. The couple did not sign a pre-nuptial agreement before their wedding in 2002.