[3] Kroenig started his modeling career in 2002 with a longstanding collaboration with fashion designer Karl Lagerfeld.

Considered one of "Karl's Boys," he followed the designer to business trips, parties and holidays, and was sometimes mistakenly identified as his boyfriend by gossip blogs.

[4] He has graced numerous magazine covers including VMAN, Vogue, Numéro Homme and Allure.

Kroenig has appeared in print campaigns for designers including Chanel, Fendi, Dolce & Gabbana, Abercrombie & Fitch, Roberto Cavalli, DKNY, Gap and Adidas, and on the runway for Chanel and Michael Kors.

His son Hudson is Karl Lagerfeld's godson, and has been appearing on Chanel's runway since he was two years old.