The Yazidids (Arabic: بنو يزيد, romanized: Bānū Yāzīd) or Mazyadids (after their ancestor Mazyad al-Shaybani) or Shaybanids (after Banu Shayban), were an Arab family what came to rule over the region of Shirvan (in Azerbaijan) in the mid 9th century.
Starting from Haytham ibn Khalid's assumption of the ancient Iranian title of Shirvanshah in 861, they practically broke free of Abbasid control and was therefore out of scope for most chroniclers of the Caliphate.
[1] The dynasty was named after Yazid ibn Mazyad al-Shaybani, an Abbasid Governor of Arminiyah.
Dynasty ruled both Shirvan and Layzan, until latter invaded Shamakhy and united crowns.
The Mazyadids were succeeded by Kasranids which is regarded as the start of the cultural Persianization of Shirvan.