Mutassim Billah Gaddafi (Arabic: المُعْتَصِمٌ بِٱللهِ ٱلْقَذَّافِيّ, also transliterated as Al-Moa'tassem Bellah Al-Qaddafi or Al-Mu ' tasim Bi ' llah al-Qadhafi; 18 December 1974 – 20 October 2011) was a Libyan Army officer, and the National Security Advisor of Libya from 2008 until 2011. He was the fourth son of former Libyan leader Muammar Gaddafi, and a ...

Mazyar (Middle Persian: Māh-Izād; Mazandarani/Persian: مازیار, romanized: Māzyār) was an Iranian prince from the Qarinvand dynasty, who was the ruler of the mountainous region of Tabaristan from 825/6 to 839. For his resistance to the Abbasid Caliphate, Mazyar is considered one of the national heroes of Iran by twentieth-century Iranian nationalist historiography.