October 21 is Trafalgar Day, the celebration of the victory won by the Royal Navy, commanded by Vice-Admiral Horatio Nelson, over the combined French and Spanish fleets at the Battle of Trafalgar on 21 October 1805.  My years of research for Nelson's Folly uncovered many insights into one of the most famous heroes of British history, his life, times and turbulent relationships, including the unsung role of his wife Fanny.