Joachim Ernest, Prince of Anhalt (1536–1586), German prince of the House of Ascania
In addition to the new residence town of Plön his estate included Ahrensbök and Reinfeld.
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John Adolphus, also known as Hans Adolf (b 1634; d 1704), Duke of Schleswig-Holstein-Sonderburg-Plön, married Dorothea of Brunswick-Wolfenbüttel
In Barby on 3 March 1560 Joachim Ernest married Agnes (b. Barby, 23 June 1540 – d. Bernburg, 27 November 1569), daughter of Wolfgang I, Count of Barby-Mühlingen.
Ernest Hemingway | Ernest Shackleton | Joachim Murat | Ernest Borgnine | Ernest Tubb | Ernest Rutherford | Ernest Renan | Joachim | Ernest Chausson | Ernest Bloch | Ernest Bevin | Ernest | Ernest George | Ernest Gruening | Ernest Dowson | Ernest Bai Koroma | Joseph Joachim | Johann Joachim Winckelmann | Joachim von Ribbentrop | Joachim Ringelnatz | Ernest Thompson Seton | Ernest Hollings | William Ernest, Duke of Saxe-Weimar | John Ernest | Ernest Thayer | Ernest Jones | Ernest Giles | Ernest Gellner | Ernest Fenollosa | Ernest Augustus I of Hanover |
# Dorothea Auguste (12 May 1602 – 13 March 1682), married in 1633 to Joachim Ernest, Duke of Schleswig-Holstein-Sonderburg-Plön.
He was born on 8 April 1634 in Ahrensbök, the eldest son of the first Duke of Plön, Joachim Ernest and Dorothea Augusta of Schleswig-Holstein-Gottorp.
In 1671 there was a further division of assets after the death of Duke Joachim Ernest, and the Duchy of Rethwisch was created around the place of the same name under his second son, Duke Joachim Ernest; this reverted to the line of the first born in 1729.
Dorothea Charlotte was a daughter of the Margrave Albert of Brandenburg-Ansbach (1620–1667) from his second marriage to Sophia Margaret of Oettingen-Oettingen (1634–1664), daughter of Count Joachim Ernest of Oettingen-Oettingen.