Hollywood actor Patrick Stewart has died. The actor, known for projects like Star Trek and X–Men, passed away at age 86. Reportedly (as per his spokesperson Kelly Bush Novak), he struggled with Alzheimer’s disease and Lewy body dementia.

Patrick’s death news was shared on the official X page, and the post highlighted that the actor passed away battling Alzheimer’s disease at his Los Angeles home.

The post caption reads, “In lieu of flowers, memorial contributions may be made to Johns Hopkins Alzheimer’s Disease Research Center Fund and Alzheimer’s Foundation of America Caregiver Resources.”

Patrick Stewart is survived by his third wife, singer Sunny Ozell, and two children, Daniel and Sophia, from his first marriage to actress Sheila Falconer.

As soon as the news of Patrick’s demise surfaced, tributes and messages started pouring in.

“We lost one of the greats of stage and screen today. And, in my book, a tremendous friend and man. I learned so much from him. I will miss you, Patrick Stewart, all of my days,” Hollywood superstar Hugh Jackman, who co-starred in X-Men, wrote in a heartfelt post on Instagram.

While Marvel Studios, in a dedicated post, wrote, “All of us at Marvel Studios are deeply saddened by the passing of Sir Patrick Stewart. Sir Patrick brought Professor Charles Xavier to life with extraordinary grace, intelligence, and humanity, defining the character for generations of fans, from “X-Men” to “Logan” to “Avengers: Doomsday.” He was a singular talent, a generous collaborator, and a true gentleman. Our hearts go out to his wife Sunny, his children, his friends, and the countless fans around the world whose lives he touched with his art.”

William Shatner, who was also part of Star Trek, expressed condolences for his co-star’s death: “What a heartbreaking week it has been. Sir Patrick Stewart was a friend, a colleague, and a magnificent actor. From the stage to the bridge of the Enterprise, he brought intelligence, grace, and a deep sense of humanity to everything he did. Captain Picard stood for the best of us, and so did the man who played him. I was filled with affection and admiration for him and his work. My heart goes out to Sunny and his family. He will be deeply missed.”