Sir David Amess dressed as a knight to celebrate his knighthood in 2015.
The humorous photo shows the Southend West MP dressed head to toe in shining armour whilst sitting on a horse.
The MP was part of a New Years Honours list for his political and public service.
Sir David’s office confirmed to The Basildon Echothat the photo had been edited but insisted Amess had donned the incredible outfit.
Conservative MP Sir David Amess died earlier today after being stabbed multiple times at a meeting with constituents.
The suspect, a 25-year-old man, has been arrested on suspicion of murder after the Tory veteran was stabbed several times during a constituency surgery in Essex.
The 69-year-old victim, who has been an MP since 1983, was fatally injured at Belfairs Methodist Church in Leigh-on-Sea in Essex midday on Friday.
The father-of-five is the second sitting MP to be killed in such circumstances in five years, following the death of Labour MP Jo Cox in 2016 as she attended a constituency surgery.
Former prime minister Tony Blair said he was “shocked and horrified” by the murder of Sir David Amess. “David and I came into Parliament together in 1983,” he said in a statement.
“Though on opposite political sides I always found him a courteous, decent and thoroughly likeable colleague who was respected across the House.
“This is a terrible and sad day for our democracy.”
Transport Secretary Grant Shapps said in a tweet: "Awful, tragic news about David. A dedicated, thoughtful man and a true Parliamentarian, who lost his life while serving the constituents who he worked relentlessly for throughout his career. My thoughts are with his family and friends at this time."