Alan Holmes wrote:

Nelsons body, was, apparently pickled in a container of rum to preserve his
body so he could be bought home for burial, the sailors on board did not
know this and they taped the cask, forever after, rum was known as Nelsons
Blood!

Ah, well it was also supposedly the basis for the saying "tapping the
Admiral" (having a drink), but unfortunately it's a myth ... allegedly.