As far as designers go, no one is more spirited than Karl Lagerfeld. He has voiced his opposition to model bans; he has ranted about the state of France; he has complained about complicated names. But compared to his most recent cause celeb, these Lagerfeld beefs seem like child's play.

Earlier this month, Lagerfeld took legal action against Paris-based fashion journalist Alicia Drake, author of the new book The Beautiful Fall. Drake's book examines the world of high Paris fashion during the 1970s, specifically the infamous rivalry between Yves Saint Laurent and old Karl. As part of his case against Drake, Lagerfeld claims to have found at least 100 mistakes, including false accusations about his age and his family. Lagerfeld has requested compensation for damages due to the invasion of his personal life.

A judgment is expected by January 15, so we'll be sure to keep you updated as the case unfolds.