84: Malik-ul-Mulk
Below is a reference to the Beautiful Name of Allah in Quran or Hadith:
Yusuf Ali (Surat 'Āli `Imrān (Family of Imran) Surah #03 of 114, Verse #26 of 200)
Say: "O Allah! Lord of Power (And Rule), Thou givest power to whom Thou pleasest, and Thou strippest off power from whom Thou pleasest: Thou enduest with honour whom Thou pleasest, and Thou bringest low whom Thou pleasest: In Thy hand is all good. Verily, over all things Thou hast power.