Its not quite that simple Whickerman. It depends on value of estate for intestacy rules and also whether there was a will and if there was whether it was a mutual (very unusual now) will. I think Juleez needs to give us a little more information.
But, generally speaking, age and dependency will not per se change the circumstances of the inheritance, although those may give rise to a claim under the Inheritance (Provision for Family and Dependants) Act 1975.