"Adolf Frederick I (15 December 1588 – 27 February 1658) was the reigning Duke of Mecklenburg-Schwerin from his father´s death in 1592 until 1628 and again from 1631 to 1658. Between 1634 and 1648 Adolf Frederick also ruled the Prince-Bishopric of Schwerin as its administrator." - (en.wikipedia.org 31.01.2020)
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