December calendar pages in books of hours typically feature butchering pigs, baking, and sometimes, both at once in the form of roasting a slaughtered pig. The porcine emphasis in December is a reasonable one, given that the pigs fattened by eating mast in the form of nuts and acorns in November are now ready to be butchered and roasted. The image below is a detail from the Très Riches Heures of Jean, duc de Berry (Chantilly, Musée Condé, MS 65) calendar image for December. It features a wild boar hunt. The building in the background is the Château de Vincennes, where the Duc de Berry was born in 1340, on…