Patrick Stewart, a British actor who won the hearts of sci-fi fans through his roles in Star Trek and X-Men, died at 86. 

Stewart died Wednesday at his Los Angeles home following “a brief and poignant journey with Alzheimer’s disease and Lewy body dementia,” spokesperson Kelly Bush Novak told The Hollywood Reporter.

“He has been held in the warm embrace of family and friends, surrounded by live music, prayer, tears, laughter and the kind of profound emotion that only he could inspire after a lifetime of devotion to us all,” Bush Novak wrote. “We will forever cherish the peaceful ease and reflection on his face, an enduring reminder of his invincible grace.”