Peerage Record – 638

     Johann XI Graf von Oldenburg was born circa 1460. He was the son of Gerhard VI Oldenburg, Count of Oldenburg and Adelheid von Tecklenburg. He married Anne von Anhalt-Zerbst, daughter of Georg I Prinz von Anhalt-Zerbst and Anna von Lindau-Ruppin, on 20 June 1498. He died on 10 February 1526.
     He gained the title of Graf von Oldenburg.

     Anne von Anhalt-Zerbst was born circa 1454. She was the daughter of Georg I Prinz von Anhalt-Zerbst and Anna von Lindau-Ruppin. She married Johann XI Graf von Oldenburg, son of Gerhard VI Oldenburg, Count of Oldenburg and Adelheid von Tecklenburg, on 20 June 1498. She died on 10 October 1526.

     Georg I Prinz von Anhalt-Zerbst was born after 1389. He was the son of Siegmund I Prinz von Anhalt-Zerbst and Jutta von Querfurt. He married, firstly, Matilde von Anhalt-Bernburg, daughter of Otto III Prinz von Anhalt-Bernburg and Lutrud (?), after 1412. He married, secondly, Eufemia von Oels in 1432. He married, thirdly, Sofie von Hohenstein after 1442. He married, fourthly, Anna von Lindau-Ruppin, daughter of Albrecht III Graf von Lindau-Ruppin, in 1453. He died in 1474.
     He gained the title of Prinz von Anhalt-Zerbst.

     Anna von Lindau-Ruppin was the daughter of Albrecht III Graf von Lindau-Ruppin. She married Georg I Prinz von Anhalt-Zerbst, son of Siegmund I Prinz von Anhalt-Zerbst and Jutta von Querfurt, in 1453. She died in 1511.

     Albrecht III Graf von Lindau-Ruppin was also known as Graf von Lindau-Ruppin.

     Johann XV Graf von Oldenburg was born on 21 July 1500. He was the son of Johann XI Graf von Oldenburg and Anne von Anhalt-Zerbst. He died on 16 January 1548 at age 47, unmarried.
     He succeeded as the Graf von Oldenburg in 1526. He resigned as Count of Oldenburg in 1529.

     Anne von Oldenburg was born on 14 November 1501. She was the daughter of Johann XI Graf von Oldenburg and Anne von Anhalt-Zerbst. She married Enno II Graf von Ostfriesland on 6 March 1530. She died on 10 November 1575 at age 73.

     Enno II Graf von Ostfriesland was born circa August 1505. He married Anne von Oldenburg, daughter of Johann XI Graf von Oldenburg and Anne von Anhalt-Zerbst, on 6 March 1530. He died on 24 September 1540.
     He gained the title of Graf von Ostfriesland.

     George Graf von Oldenburg was born circa 1503. He was the son of Johann XI Graf von Oldenburg and Anne von Anhalt-Zerbst. He died on 21 January 1551, unmarried.
     He succeeded as the Graf von Oldenburg in 1529.

     Gerhard VI Oldenburg, Count of Oldenburg was born circa 1430. He was the son of Dietrich Oldenburg, Count of Oldenburg and Hedwig Herzogin von Schleswig-Holstein. He married Adelheid von Tecklenburg, daughter of Otto VII Graf von Tecklenburg and Ermengard von Hoya, circa May 1453. He died on 22 February 1500.
     He gained the title of Count of Delmenhorst in 1440. He gained the title of Count of Oldenburg in 1454.