King Charles II incurred the debt in 1651 when he ordered uniforms for his troops who were to fight in the Battle of Worcester. The debt was with the Clothiers Company. The Company remains in operation to this day. The debt was for 450 pounds and 3 shillings.
Prince Charles handed over the cash to Philip Sawyer who is the High Commissioner of the Clothiers Company. If the interest was factored into the debt then the amount due and payable would have been in the vicinity of 47,500 pounds.