Jayden Wilson, the terminally ill boy who became an Internet sensation last month when his father dressed as Spider-Man to surprise him for his fifth birthday, passed away on Christmas Eve. He was diagnosed in September 2013 with a grade 4 brain stem tumor and given about a year to live.

"Jayden fought an amazing battle. By far he was the most bravest person we know," his father Mike Wilson wrote on the Hope For Jayden Facebook page. "But unfortunately late on Christmas Eve, Jayden died peacefully in his sleep, warm in his bed. He looked so relaxed with a very subtle grin on his face. We believe he waited to be out of hospital to be with his family in the most safest place he knew. Jayden had such a happy life. What an incredible 5 years."

Wilson donned a custom-made Spider-Man costume last month and leaped from the roof of their home in Basingstoke, England, surprising not only Spidey fan Jayden but his mother and sister Ella. The video has been watched more than 9 million times.

"Jayden to us, is the most inspiring person ever, fighting this tumor with all his might," his father wrote. "We now remember Jayden as that cheeky little chappy, always smiling, playing with his favourite toys, on his scooter, enjoying school, and playing with his friends x will never forget this little Spartan Warrior x."