Carte-de-visite head and shoulders photograph of Prince Karl Theodore of Bavaria, in a vignette format. The subject is shown in three quarter view, facing towards the right of the image. The subject has blonde, wavy hair and a handlebar moustache. He is wearing a white shirt with a turn down collar, a black silk tie with white pinstripes and a dark coloured sack coat, fastened at the top button.

Karl Theodore was the third son of Duke Maximilian of Bavaria and his wife, Princess Ludovika of Bavaria. He was a qualified medical doctor, specialising in ophthalmology.  In 1865 Karl Theodor married his first cousin Princess Sophie of Saxony and the couple had one child. Following the death of his first wife, in 1874 he married Infanta Maria Josepha of Portugal and the couple had five children.