In a recent decision, the Court of Appeal have may have reversed a long held assumption that, in a long marriage, the source of the marital wealth has no bearing on the division of the assets in a divorce. 

In the case in question,  Hart v Hart,  the 23-year duration of the marriage was held not to have erased the non-matrimonial status of Mr Hart's pre-marital assets and Mrs Hart's share of the £9.4m assets was reduced from half to £3.5m as a result.