Prince Bojidars' paternal grandparents were Prince Alexis Karageorgevitch (1801–1830), the eldest son of Karađorđe Petrović and his wealthy wife, Maria Nikolaevna Trohin (1806-1827) from Bessarabia, daughter of Nicolae Konstantinovich Trohin, Marshal of the Nobility of Khotyn (1828-1831) and Victoria Konstantinovna Buzny (d. 1824), daughter of Boyar Konstantin Ilyich Buzny (b. circa 1750), who held the title of Armaș, both of their families belonged to the Nobility of Moldavia and Wallachia.

There he regularly contributed articles to the Figaro, La Revue de Paris, the Magazine of Art (Ilya Repin, Jules Bastien-Lepage), including a biography of Marie Bashkirtseff in the Encyclopædia Britannica, 11th Edition, Vol.

On November 8, 1889, he attended in Rochefort, France, the orientalist feast given by French writer Pierre Loti who has just returned from his diplomatic mission with Sultan Hassan I of Morocco.

In Montmartre, he met and befriended French stage actress Sarah Bernhardt, pioneer of modern dance Loïe Fuller, French poet, novelist and noted orientalist Judith Gautier, Suzanne Meyer-Zundel, Austrian composer Hugo Wolf, painter and illustrator Henri de Toulouse-Lautrec, and founder of the Ballets Russes Sergei Diaghilev.

[8] In his later years Prince Karadjordjevitch turned his attention in decoration, and executed panels and medallions for a Paris atelier as a designer, sculptor, painter and silversmith, and often spent time with Georges Lacombe, Émile Bernard, Édouard Vuillard, Paul Sérusier and other members of Les Nabis.