Like this one from the BBC: https://www.bbc.com/news/uk-50589065
He outlived nearly everyone who knew him and might explain him.
And so we have been left with a two-dimensional portrait of the duke; salt-tongued and short-tempered, a man who told off-colour jokes and made politically incorrect remarks, an eccentric great-uncle who'd been around forever and towards whom most people felt affection - but who rather too often embarrassed himself and others in company.