(Gray News) - Sir Patrick Stewart died Wednesday at his Los Angeles home, a post on his official Instagram account revealed.

The post said Stewart died after a brief battle with Alzheimer's and dementia.

FILE -- Patrick Stewart speaks on stage after a screening of "Star Trek: Picard" at the 92nd Street Y on Monday, Feb. 13, 2023, in New York.(CJ Rivera/Invision/AP)He was 86.