Brad Pitt's mom Jane Etta Pitt has died at age 84. Brad's niece Sydney Pitt confirmed the news via Instagram with a lengthy tribute. "My sweet Grammy, Jane Etta, we were not ready for you to go yet but knowing you are finally free to sing, dance, and paint again makes it a tad easier," Sydney shared in an Instagram caption on Wednesday, August 6. "If you knew Grammy, you knew she had the biggest heart. She cared deeply for everyone and everything, no questions asked.