Neptune formed part of the weather column in the Battle of Trafalgar on 21 October .
Was the third ship from the lead , situated between her sister HMS Temeraire , and the 74 - gun HMS Leviathan .
Neptune formed part of the weather column in the Battle of Trafalgar on 21 October , and was the third ship from the lead , situated between her sister HMS Temeraire , and the 74 - gun HMS Leviathan .