News ’16 is a good age’: Heidi Klum’s daughter Leni makes modeling debut in Vogue Germany December 11, 2020 Charles Trepany, USA TODAY Comments Off on ’16 is a good age’: Heidi Klum’s daughter Leni makes modeling debut in Vogue Germany With support from her mom Heidi Klum, 16-year-old Leni Klum made her modeling debut Thursday for the January/February 2021 issue of Vogue Germany.