Albrecht Frederick of PRUSSIA
He married Marie Eleonore, Princess of JÜLICH-Kleve-Berg 14 Oct 1573 at Königsberg, Ostpreussen, Prussia . Marie Eleonore, Princess of JÜLICH-Kleve-Berg was born at Kleve, Rheinland, Prussia 15/16 Jun 1550 daughter of Wilhelm IV Duke of Julich Kleve and Marie Archduchess of Austria .
They were the parents of 7
children:
Anna Princess of Prussia, Electress of Brandenburg
born 3 Jul 1576.
Mary Princess of Prussia
born 23 Jan 1579.
Albrecht Friedrich, Prince of Prussia
born 1 Jun 1580.
Sofie, Princess of Prussia
born 31 Mar 1582.
Eleonore (Marie) Princess of Prussia
born 12/22 Aug 1583.
Wilhelm Friedrich, Prince of Prussia
born 23 Jun 1585.
Sibylle (Magdalene) Princess of Prussia
born 31 Dec 1586.
Albrecht Frederick of Prussia died 18/28 Aug 1618 at Fischhausen, Ostpreussen, Prussia .
Marie Eleonore, Princess of JÜLICH-Kleve-Berg died 23 May 1608 at Königsberg, Ostpreussen, Prussia .