He married Marie Elizabeth Wettin 21 Feb 1630. Marie was born 22 Nov 1610. Marie was the daughter of
John George I Wettin and Magdalene Sibylle von Brandenberg. Marie died 24 Jun 1684 at 73 years of age.
Frederick III von Holstein-Gottorp and Marie Elizabeth Wettin had the following children:
122
i.
Sophie Auguste9 von Holstein-Gottorp was born 5 Dec 1630. Sophie died 12
Dec 1680 at 50 years of age. She married John Anhalt-Zerbst 16 Sep 1649. John was born 24 Mar 1621.
John died 4 Jul 1667 at 46 years of age.
123
ii.
Magdalene Sibylle von Holstein-Gottorp was born 24 Nov 1631. Magdalene died 22 Apr 1719 at 87 years of age. She married Gustave Adolf von Mecklenburg-Gustrow 28 Dec 1654. Gustave was born 25 Feb 1633.
Gustave died 5 Nov 1695 at 62 years of age.
124
iii.
Hedwig Eleonora von Holstein-Gottorp was born 23 Oct 1636. Hedwig died 24 Nov 1715 at 79 years of age. She married Charles X Gustavus von Simmern 24 Oct 1654. Charles was born 8 Nov 1622. Charles died
23 Feb 1660 at 37 years of age.