Tags: Noble.
John Albert II Duke of Mecklenburg[-Güstrow] (born: 5 May 1590 in Waren – died 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.
