The Leopard in Autumn was a BBC comedy-drama radio series by Neil Anthony set in the fictional principality of Monte Guano in Renaissance Italy.

[1] The Leopard in Autumn follows the lives of the ruling family and court of Monte Guano, a small and impoverished Italian principality.

Princess Plethora is a much more intelligent and thoughtful character who is behind many successful ploys to improve Monte Guano's financial clout.

She is good friends with Countess Rosalie, Ludovico's "official mistress" who arrived in Monte Guano with the intention of marrying the eldest son of the Prince.

His (excessive) private devotion to Catholicism brings him into friction with the youngest brother Guido, a Protestant, and devotee of Martin Luther's works.