The answer is a muddled one and I would go £2-50 each.
The law starts with the 50/50 and yes in many EU countries inherited wealth is excluded. However, the following conditions override:
• the income, earning capacity, property and other financial resources which each of the parties to the marriage has or is likely to have in the foreseeable future.
• the financial needs, obligations and responsibilities which each of the parties to the marriage has or is likely to have in the foreseeable future.
• the standard of living enjoyed by the family before the breakdown of the marriage.
• the age of each party to the marriage and the duration of the marriage.
• any physical or mental disability of either of the parties to the marriage.
• the contributions made by each of the parties to the welfare of the family, including any contribution made by looking after the home or caring for the family.
• the value to either of the parties to the marriage of any benefit (for example, a pension) which ... (by reason of the divorce) ..that party will lose the chance of acquiring."