A Stetson hat and a red-and-white Charlton Athletic scarf sat atop the flags of Brazil and the UK as Ronnie Biggs' coffin was carried into a packed-out chapel in north London.
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A police raid uncovered what is believed to be cocaine that had been stashed in nappies, and 40 cannabis plants.
The prince attended the rugby match in his role as patron of the Invictus Games Foundation, the official charity for this year's game.