Star drawing from world’s largest private Rembrandt collection could bring $15m at auction

Billionaire entrepreneur Thomas S. Kaplan and his wife Daphne Recanati Kaplan are selling Rembrandt's drawing *Young Lion Resting* (circa 1638-42) from their Leiden Collection, one of the world's largest private holdings of 17th-century Dutch art. Sotheby's announced on November 3 that the work will be auctioned during its Old Masters sales in New York on February 4, 2026, with a pre-sale estimate of $15 million to $20 million. Proceeds from the sale will benefit Panthera, a wild-cat conservation organization co-founded by Kaplan and philanthropist Jonathan Ayers, marking the 20th anniversary of the organization's founding.