"Agnes of Poitou, also called Agnes of Aquitaine or Empress Agnes (c. 1025 – 14 December 1077), a member of the House of Poitiers, was German queen from 1043 and Holy Roman Empress from 1046 until 1056. From 1056 to 1061 she acted as Regent of the Holy Roman Empire during the minority of her son Henry IV." - (en.wikipedia.org 01.11.2019)
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