Ah no great story. He was just a scary old Polish man who couldn't understand why his kids weren't full of gratitude because he'd provided them with luxury and opportunity compared to his upbringing. His kids (ie my mum) felt they should probably have had their own pair of school shoes each rather than having to take it in turns to wear them to school.
He taught us how to play dominoes, talked through a tracheostomy and beat up my mum and her siblings. His house was dark and oppressive and secret things were whispered about that I couldn't possibly understand aged 11. My nan was nice though she wasn't my mum's mum. She bought me an iron as a wedding gift but died the week before I got married.
We didn't even have it that tough. My older cousins got it much worse.
I wonder how his life would be different if he hadn't grown up exploited by various forms of government - he fought on both sides in WW2 and then was abandoned in Wythenshawe. He left behind some poetry and fear. But the world is a much worse place now because Star Wars is racist and misogynistic so it's probably good he's dead just to avoid that injustice.