Administration de bonis non?

I should be grateful for views on the following scenario:

Husband dies intestate survived by wife and daughter (only child). Wife obtains a Grant of Letters of Administration to deal with the transfer of a small piece of land. Deeds cannot be located. Application for possessory title is made and the land vested in wife “as Administratrix for [husband]”.

It is not clear why the Land Registry vested ownership this way. The value of husband’s estate was very low. all passed to wife.

Wife makes a Will appointing daughter Executor and sole beneficiary. Wife has now died.

I think we need to obtain a Grant de bonis non for the daughter in father’s estate and a separate grant of probate for mother’s estate in order to vest [possessory] title in daughter.

Do forum members agree or is there another way I should be approaching this?

Thanks in advance