To keep uncle's death to myself?

[mintich]

My mum has a brother and a sister who she has lost touch with. She is quite an argumentative person and used to argue with them or just go years without speaking.
I think the last time she spoke to her brother was around 1994! But she still says they haven't fallen out, so not sure why she doesn't speak to him.
Anyway I have been researching my family tree and came across his death certificate from 2 years ago. Clearly his family didn't bother to tell our family
I feel like bringing it up will just lead to upset and probably an argument (with me! She tends to lash out at whoever is there)
But I do feel like I'm holding a big secret. I'm not sure she would ever find out unless she tried to contact him, which I'm not sure she would. So do you agree I should just keep quiet or AIBU?

I wouldn't tell her either. Why go through the drama when it won't achieve or change anything.

His family had their reasons for not telling her. I'd keep quiet about it in your shoes. I'm sure no good will come of it if you do tell her

Yeah i think she'd either get angry at me for upsetting her or angry at his family for not telling her. Very hypocritical I know considering she's ignored him for years! Either way I can see an argument happening