Marshall, 26, from Southampton, Hampshire, claimed in his listing, posted just eight days after the Queen's death, that he had been a footman at Windsor Castle and had permission from the royal household to sell the stick, with proceeds going to charity.
The auction, which reached £540, was halted after attracting police attention. When officers raided Marshall's home, they found a collection of monarchy memorabilia, including a portrait of the late queen and a book of Princess Diana. Despite Marshall's denial of fraud by false representation at Southampton magistrates court, he was convicted at the end of his trial.
The prosecution argued that Marshall was not a footman, did not possess the Queen's walking stick, and was not raising money for charity. The auction had attracted five bidders, one of whom demanded proof of the item's authenticity. When Marshall failed to provide it, the royal protection branch of the Metropolitan Police was alerted, leading to a raid on his home and the seizure of his laptop.
Marshall initially claimed his eBay account had been hacked, but later admitted in court that his actions were a 'social experiment' driven by curiosity, not an intention to scam. He expressed regret, acknowledging his actions as a 'monstrous betrayal' of the royal family. The magistrate, however, found Marshall's court statements not credible. Marshall, now residing in Romsey, is awaiting sentencing scheduled for January.