The Tsar's in-laws include:
Living members •
Tsaritsa Margarita (the Tsar's wife) •
Miriam, Dowager Princess of Tarnovo (the Tsar daughter-in-law, widow of
Kardam, Prince of Tarnovo) •
Rosario, Princess of Preslav (the Tsar's daughter-in-law, wife of the
Prince of Preslav) • Marc Abousleiman (the Tsar's grandson-in-law, husband of Princess Mafalda-Cecilia) • Carla, Princess of Panagyurishte (the Tsar's daughter-in-law, wife of the Prince of Panagyurishte) • María, Princess of Vidin (the Tsar's daughter-in-law, wife of the Prince of Vidin) •
Antonio Muñoz (the Tsar's son-in-law, husband of Princess Kalina) • Princess Cheryl of Leiningen (the Tsar's niece-in-law, wife of Prince Boris) • Princess Deborah of Leiningen (the Tsar's niece-in-law, wife of Prince Hermann Friedrich) • Clayton Reynolds (the Tsar's grandnephew-in-law, husband of Princess Tatiana) • Ian Baker (the Tsar's grandnephew-in-law, husband of Princess Nadia) • Jorge Champalimaud Raposo de Magalhães (the Tsar's nephew-in-law, husband of Princess Alexandra) • Princess Ariana Chrobok of Koháry (the Tsar's niece-in-law, wife of Prince Pawel) • Irene de La Lanne-Mirrlees (the Tsar's cousin-in-law, wife of Patrick de La Lanne-Mirrlees) • Heinrich Rusche (the Tsar's cousin-in-law, husband of Marie Charlotte de La Lanne-Mirrlees)
Deceased members •
Princess Marie Louise (the Tsar's grandmother, first wife of then-Prince
Ferdinand I, died in 1899) •
Princess Clémentine (the Tsar's great-grandmother, mother of tsar Ferdinand I, died in 1907) •
Tsaritsa Eleonore (the Tsar's step-grandmother, second wife of tsar Ferdinand I, died in 1917) •
Tsar Boris III (the Tsar's father, died in 1943) •
Kiril, Prince of Preslav (the Tsar's uncle, died in 1945) •
Tsar Ferdinand I (the Tsar's grandfather, died in 1948) • Duke Albrecht Eugen of Württemberg (the Tsar's uncle-in-law, husband of
Princess Nadezhda, died in 1954) •
Princess Nadezhda, Duchess Albrecht Eugen of Württemberg (the Tsar's aunt, died in 1958) •
Princess Eudoxia (the Tsar's aunt, died in 1985) • Antonio de Ramos Bandeira (the Tsar's cousin-in-law, former husband of Duchess Sophie of Württemberg, daughter of Princess Nadezhda, died in 1987) •
Prince Karl of Leiningen (the Tsar's brother-in-law, former husband of
Princess Marie Louise, died in 1990) •
Tsaritsa Giovanna (the Tsar's mother, widow of tsar
Boris III, died in 2000) • Princess Milena of Leiningen (the Tsar's niece-in-law, former wife of Prince Boris, son of Marie Louise, Princess of Koháry, died in 2015) •
Princess Alžbeta (the Tsar's step-grandmother, widow of tsar Ferdinand I, died in 2015) • Duchess Margareta Luise of Württemberg, Viscountess of Chevigny (the Tsar's cousin, daughter of Princess Nadezhda, died in 2017) • Duke Ferdinand Eugen of Württemberg (the Tsar's cousin, son of Princess Nadezhda, died in 2020) • François Luce-Bailly, Viscount of Chevigny (the Tsar's cousin-in-law, widower of Duchess Margareta Luise of Württemberg, daughter of Princess Nadezhda, died in 2022) • Duke Eugen Eberhard of Wurttemberg (the Tsar's cousin, son of Princess Nadezhda, died in 2022) • Duke Alexander Eugen of Wurttemberg (the Tsar's cousin, son of Princess Nadezhda, died in 2024) • Bronisław Chrobok (the Tsar's brother-in-law, husband of the
Princess of Koháry, died in 2025)
Former members • Archduchess Alexandra of Austria, Duchess of Württemberg (the Tsar's cousin-in-law, former wife of Duke Eugen Eberhard, son of Princess Nadezhda) ==Tsardom of Bulgaria==