Abbasa bint al-Mahdi (Arabic: العباسة بنت المهدي, romanized: al-ʿAbbāsa; c. 765 – after 804) was a famous Abbasid princess.
When Abbasa was a young her father arranged her marriage to a cadet member of Abbasid House.
Her husband was Muhammad ibn Sulayman,[2] a prominent member of a cadet branch of the Abbasid dynasty, who was a long-time governor of Kufa and Basra.
[8] After her second husband's death, Abbasa spend rest of her life as a widow in his brother's caliphal palace.
One notorious myth was that Harun al-Rashid was known for being unhappy with the fact that he was a relative of Abassa's, as he was attracted to her.