Theophanu

Theophanu (also Theophania, Theophana, or Theophano, Greek Θεοφανώ; c. AD 955 – 15 June 990), was an Empress consort of the Holy Roman Empire by marriage to Holy Roman Emperor Otto II, and regent of the Holy Roman Empire during the minority of her son from 983 until her death in 990. She was the niece of the Byzantine Emperor John I Tzimiskes.