It's one of the most famous battles in the Royal Navy's history - and today a special service will be held to remember the British victory at the Battle of Trafalgar in 1805. A ceremony will be held onboard HMS Victory - which was Lord Nelson's flagship during the battle.
She is - to this day - the oldest commissioned warship in the world.
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The tears came during the groom’s speech to the 650 guests who had assembled in St George’s Hall inside Windsor Castle.
The gem was believed to be a wedding gift from Harry to his bride.
The Duke and Duchess of Sussex are not expected to leave on their honeymoon immediately.