About 5 years and I think being in different countries helped keep it that small a time frame.
It wasn't the will as such - token amount to each GC then split equally between their two sons.
But Uncle was in different country - long distance - so didn't have the long term daily care issues to deal with though did get a lot of money that he'd always forgot to pay back.
So you'd think my parents would have been the problem demanding/expecting more money - but no. My dad accepted it and my mother, though bitter about their treatment of her and her having to do most of the care not pleasant at times and later including finding care homes - had the view it was their money.
It was my Uncle who was the problem because my Dad, younger sibling, had been made executor and not him. My Uncle lived in another country not at all close but he seemed to take it as a slight.
He cause problems at funeral, charges everything he could to the the probated estate including his accommodation costs and got nasty when Dad couldn't reimburse him immediately, got a key copied to their house and took things - which likely my Dad would have given him anyway despite their value.
I'm hoping my own parents have update the will since they asked me to be executor at 18 as they skipped an older sibling to do that. I'm hoping they've since picked my youngest sibling who is close by to them and has more daily contact - so I avoid the whole hassle of being executor and any bad feelings. They haven't said though so fuck knows if they have.