Duke of Milan Galeazzo Maria Sforza continues with his expensive naughty ways until he is assassinated in 1476. His son Gian Galeazzo becomes duke under the regency of his mother, Bona of Savoy, until his uncle Ludovico, known as "il Moro" the Moore takes over as Italy heads towards the aptly named, "Italian Wars".
Meanwhile a certain Leonardo da Vinci worked on a portrait of Ludovico Sforza's ladyfriend Cecilia Gallerani who is turned into "The lady with the ermine".