Very interesting article here and the most famous painting of Clark by Hockney
Ossie Clark, the King Of The Kings Road in Holland Park
"In 1995 Ossie Clark, the iconic sixties and seventies fashion designer known for his flowing dresses and a rather excessive party lifestyle, invited the 27 year old Italian Diego Cogalato to move into his one-bedroomed Holland Park council flat in Penzance Street. Just eighteen months later, Cogalato called 999 and said to the operator ‘I think I’ve killed someone…’."