Gee this is a tough one. A famous person whose forename starts with an 'L' eh? Fuck me is that even possible? Ooh I don't know... 'L' you say. Hmmm... would Ella Fitzgerald count? No. Uh in that case I don't know. No hang on, what was the name of that famous French politician? de Beau something...? That's it Louis de Beaupoil de Saint-Aulaire, I'll go for him, as it's the only one I can think of.