Hi, my uncle died in March, myself and my brother are his only surviving relatives. His is dated 1985 Will named our father as executor & beneficiary, however our father predesceased him by 2 years, and our mother also predesceased him by 1 year. The complication is that our uncle was married, in 1978, and separated after a year. His ex wife passed away last week, and her (estranged) sister is now looking to claim his estate. We have a copy of the separation agreement, where they both relinquish claim on each others estate, however this is not signed. The agreement was acted upon, spousal maintenance was paid, their marital home was sold. Our uncle and his ex wife/her family had no contact for the last 40 years, except a letter from her annually requesting maintenance, and a cheque sent by him. His ex wife had a new partner for 20 odd years, although they never married, as she had not divorced our uncle. My question is, how do we stop her family claiming his estate, I know emotion doesn't matter in law but my parents picked up the pieces of their broken marriage, and myself and my brother nursed him for his last few years, and I am shocked and disgusted that her sister, a few days after her death would now be looking for anything from our Uncle. Any advice would be appreciated. Thanks