Heidi Horten

[3] Horten divided her time between Vienna, Austria, and Ticino, Switzerland, when in Europe, and Lyford Cay in the Bahamas.

[4] Horten amassed an art collection of over 500 works, which included paintings by Pablo Picasso, Marc Chagall, Jean-Michel Basquiat, Andy Warhol, Gerhard Richter, Georg Baselitz, and Yves Klein.

[6] In 2019, Horten announced plans to open a private museum, having bought a 155-year-old, 2,000 m2 (22,000 sq ft) mansion in Vienna to house the collection.

[10][11][12] Following controversy over the source of the Horten fortune, Christie's announced that a portion of the proceeds would be contributed to Holocaust education and related causes.

[13] On 31 August 2023, Christie's cancelled the auction entirely after Jewish charities and organizations refused to accept any monies related to the sale.