Barnim VII, Duke of Pomerania
Barnim VII( 1390 – 22 September 1450 in Wolgast) was the son of Duke Barnim VI, Duke of Pomerania.
He was from 1425 Duke of Pomerania- Wolgast- Demmin and later also Duke of Pomerania- Barth.
He supported his brother Wartislaw IX, Duke of Pomerania against Brandenburg.
John Frederick, Duke of Pomerania
John Frederick( 27 August 1542 – 9 February 1600) was Duke of Pomerania from 1560 to 1600, and Bishop of Cammin( Kamień) from 1556 to 1574.
Elected bishop in 1556 and heir of the duchy in 1560, he remained under tutelage of his great- uncle Barnim XI until he took on his offices in 1567.
Otto III, Duke of Pomerania
Otto III, Duke of Pomerania( 29 May 1444 – 7 September 1464) was a member of the House of Griffins and a Duke of Pomerania- Stettin.
George of Naples
George( date of birth unknown; died 739) was the Duke of Naples for a decade beginning in 729.
Barnim IV, Duke of Pomerania
Barnim IV of Pomerania( 1325 – 22 August 1365) was a Duke of Pomerania- Wolgast- Rügen.
Magnus I, Duke of Mecklenburg
Magnus I, Duke of Mecklenburg (1345 – 1 September 1384) was Duke of Mecklenburg from 1383 until his death.
Magnus was the third son of Duke Albert II of Mecklenburg and his wife Euphemia of Sweden, the sister of the King Magnus IV of Sweden.
Sometime after 1362, he married Elizabeth of Pomerania-Wolgast, daughter of Barnim IV, Duke of Pomerania.
Magnus had two children:
After the death of his brother Henry III in 1383, he ruled Mecklenburg jointly with Henry's son Albert IV until his own death in 1384.
Bogislaw X, Duke of Pomerania
Bogislaw X of Pomerania, "the Great", (3 June 1454 – 5 October 1523) was Duke of Pomerania from 1474 until his death in 1523.
Theodred II (Bishop of Elmham)
Theodred II was a medieval Bishop of Elmham.
The date of Theodred's consecration unknown, but the date of his death was sometime between 995 and 997.
Barnim XI, Duke of Pomerania
Barnim XI (1501 – 1573; by some accounts Barnim IX), son of Bogislaw X, Duke of Pomerania, became duke on his father's death in 1523.
Włodzisław, Duke of Lendians
Włodzisław or Władysław( date of birth unknown – died after 944/945) was a Duke of Lendians.

Question: What is the date of birth of Barnim Xi, Duke Of Pomerania's father?