Who is the wife of Marc Jacobs designer?

Could you possibly enlighten me on the identity of the wife of the renowned fashion designer, Marc Jacobs? I've been quite intrigued by his work and personal life, and I've been wondering who he's chosen to share his life with. Is she also involved in the fashion industry, or perhaps she comes from a different background altogether? I'd be fascinated to learn more about their relationship and how it might have influenced his creative process.