I searched for "eponyms earls" and found two more:
"Familiar eponyms include braille (Louis Braille), sadism (the Marquis de Sade), mesmerise (F. A. Mesmer), cardigan (7th Earl of Cardigan), and sandwich (4th Earl of Sandwich). Just think — had the interests of the two Earls been transposed, we would probably now be wearing nice woollen sandwiches and eating toasted cardigans. "

I always preferred cardigan sweathers. Easier to put on, and
warmth adjustable.