The leaders visited Marrakech after the conference so Churchill could show Roosevelt the city's beauty. Churchill gave the painting to Roosevelt as a memento of the trip.
The painting was sold by Roosevelt's son after the president's death in 1945, and had several owners before Jolie and partner Brad Pitt bought it in 2011.
The couple separated in 2016 and have spent years enmeshed in divorce proceedings, amid speculation about the division of their extensive art collection.
They were declared divorced in 2019 after their lawyers asked for a bifurcated judgment, meaning that two married people can be declared single while other issues, including finances and child custody, remain.
The painting was sold by the Jolie Family Collection. The buyer wasn't immediately identified.
- AP