I have changed my name just in case she's a mumsnetter.
Long story but the short version. DH's mum married DH's dad they had 2 children divorced 10 years later. DH's dad remarried and about 2 years ago my FIL got divorced from his second wife. They had had 2 children together. He was ill/disabled. He recently died.
DH had a phone call from her yesterday asking him to not mention in his Eulogy that he's his son because her 2 children don't know that DH and his brother exist!!!!! WHAT!!!!