No well-known painter had those initials.
Alan Sugar
yes there is
L.s.
merie ramone
Bobo Lugington
Amy Whinehouse
Why, Claude Monet of course. You have yourself a gem
steve zahn
Sir Augustus Wall Callcott (1770-1844), English painter. =-D I have some of his art myself beautiful paintings!
Léon Bonnat, Lubin Baugin, Ludolf Backhuysen, Luis Borassa.
Andy Warhol (60's artist, famous for Campbell's Soup can, among others)