Bertrand died Saturday afternoon at Cedars-Sinai Medical Center, Jolie said in a news release. No age was provided.
Jolie, her older brother, James Haven, and her boyfriend, Brad Pitt, were at the hospital Saturday, according to the news release.
Bertrand, who had small roles in the movies "Lookin' to Get Out" in 1982 and "The Man Who Loved Women" in 1983, raised Jolie and her brother after divorcing their father, Oscar-winning actor Jon Voight, when Jolie was a toddler.
A private funeral was planned, the AP reports.
In lieu of flowers, the family asked that donations be made to the Women's Cancer Research Institute at Cedars-Sinai.
The US is going to ban exports of Iranian oil to the world market from November 5 of this year. In turn, Iran threatens to block the passage of oil tankers of the Gulf countries through the Strait of Hormuz
The World Cup that is about to finish in Russia has shown that the Western propaganda machine has failed to create the image of Russia as a monster with "many tentacles." By and large, the Russians and the Ukrainians are close to each other