John Albert II, Duke of Mecklenburg

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John Albert II, Duke of Mecklenburg
Block John Albert II of Mecklenburg.jpg
Portrait of John Albert II from the year 1635 (National Museum, Warsaw)
Spouse(s) Margaret Elizabeth of Mecklenburg
Elizabeth of Hesse-Kassel
Eleonore Marie of Anhalt-Bernburg
Noble family House of Mecklenburg
Father John VII, Duke of Mecklenburg
Mother Sophia of Schleswig-Holstein-Gottorp
Born (1590-05-05)5 May 1590
Died 23 April 1636(1636-04-23) (aged 45)

John Albert II, Duke of Mecklenburg[-Güstrow] (5 May 1590 in Waren – 23 April 1636 in Güstrow) was a Duke of Mecklenburg. From 1608 to 1611, he was the nominal ruler of Mecklenburg-Schwerin; the actual ruler being the regent, his great-uncle Charles I. From 1611 to 1621 John Albert and his brother Adolf Frederick I jointly ruled the whole Duchy of Mecklenburg. From 1621, John Albert ruled Mecklenburg-Güstrow alone.


John Albert was the son of Duke John VII and Sophia of Schleswig-Holstein-Gottorp.

He reigned from 16 April 1608, under the regency of his great-uncle Duke Charles I, jointly with his brother Adolf Frederick I in the Mecklenburg-Schwerin part of the country. After Charles's death, the Emperor declared Adolf Frederick an adult and he ruled alone until John Albert came of age and they began to rule jointly.

In 1617 he converted to Protestantism. In the division of Mecklenburg of 1621, John Albert received Mecklenburg-Güstrow.

In 1623, both brothers joined a defensive alliance of the Lower Saxon Estates. They tried to seem neutral during the Thirty Years' War, but they secretly supported the Danish troops of king Christian IV. After the Imperial side won the Battle of Lutter, Tilly treated them as enemies. On 19 January 1628, Emperor Ferdinand II issue a decree at Brandýs Castle declaring that the brothers had forfeited their fief and that Mecklenburg would be invested to Wallenstein. In May 1628, the brothers left the Duchy, at the request of Wallenstein. In May 1631, Wallenstein was overthrown by Swedish troops, and the brothers returned.

John Albert II died in 1636 and was buried in the Minster in Güstrow.

Marriage and issue

John Albert II was married three times.

(I) On 9 October 1608 he married Margaret Elizabeth (1584–1616), daughter of Duke Christopher of Mecklenburg. The couple had the following children:

  • John Christopher (1611–1612)
  • Elisabeth Sophie (20 August 1613 – 12 July 1676,)
married Duke Augustus II of Brunswick-Wolfenbüttel
  • Christine Margaret
married firstly on 11 February 1640 Francis Albert of Saxe-Lauenburg, son of Francis II
married secondly, on 6 July 1650 Duke Christian Louis I of Mecklenburg-Schwerin (divorced 1663)
  • Charles Henry (1616–1618)

(II) On 26 March 1618, he married Elizabeth of Hesse-Kassel (24 May 1596 – 16 December 1625), daughter of Landgrave Maurice of Hesse-Kassel. This marriage remained childless.

(III) He married his third wife, Eleonore Marie of Anhalt-Bernburg (7 August 1600 – 17 July 1657), daughter of Prince Christian I of Anhalt-Bernburg, on 7 May 1626. The couple had the following children:

  • Anna Sophie (29 September 29, 1628 – 10 February 1666)
married Duke Louis IV of Legnica
  • John Christian (1629–1631)
  • Eleanor (1630–1631)
  • Gustav Adolph (1633–1695)
  • Louise (20 May 1635 – 6 January 1648)


External links

John Albert II, Duke of Mecklenburg
Born: 5 May 1590 Died: 23 April 1636
Preceded by
Charles I
Duke of Mecklenburg
Succeeded by
Preceded by
Duke of Mecklenburg-Güstrow
Succeeded by
Gustav Adolph