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Leonardo da Vinci, often labeled an epicurean, has been traditionally viewed as a possible vegetarian, a designation that remains somewhat contentious among historians. This uncertainty arises largely because while he was indeed an avid appreciator of food, concrete evidence of his vegetarianism is vague. However, he was known to have owned a noteworthy cookbook from the Renaissance era titled De honesta voluptate et valetudine by Bartolomeo Platina, which indeed featured several vegetarian recipes.