Patrick Stewart has died at 86, his family announced. Reporting says he died at his Los Angeles home after living with Alzheimer’s disease and Lewy body dementia. A Shakespearean stage actor, he became widely known as Captain Jean-Luc Picard in Star Trek and Professor X in the X-Men films. His Picard role continued across television and film, and he received a knighthood in 2010. This account summarizes the family’s announcement and his career, rather than drawing medical conclusions from his illnesses.