TIL That Jack Kelly, father of Grace Kelly and self made millionaire was banned from the Henley Regatta under the pretext that he was not a gentleman. He went on to beat the Henley champion at the Olympics and sent the King of England a note saying simply "greetings from a bricklayer".

He found out that he had been banned when he was about to depart for England to compete at Henley.  The stewards of the Henley Royal Regatta had concluded that he was not a gentleman as he had been previously been paid to perform manual labor, and that he must be banned as only gentleman were fit for Henley.  

Jack Kelly would face the Henley champion in the finals of the 1920 Olympic single scull, where the two were pitted head to head in one on one competition.  Jack won the race and the corresponding Olympic Gold, and afterwards, sent the King of England his cap from the competition, accompanied by a note that said simply "greetings from a bricklayer."

Incidentally, half an hour after this race finished, Kelly and his cousin Paul would go on to win the Double Sculls competition, making Jack Kelly the only person to date to win two Olympic Gold medals in under half an hour.