Title: George II of Brieg
Content:  George II of Brieg (Legnica, 18 July 1523 – Brzeg, 7 May 1586), was a Duke of Brzeg from 1547 until his death. He was the second son of Frederick II, Duke of Legnica-Brzeg, by his second wife Sophie, daughter of Frederick I, Margrave of Brandenburg-Ansbach.
Title: George II of Brieg
Content: 1) Barbara (b. 24 September 1548 – d. 29 September 1565). ; 2) Joachim Frederick (b. 29 September 1550 – d. Brzeg, 25 March 1602). ; 3) John George (b. 17 June 1552 – d. Ohlau, 6 July 1592). ; 4) Sophie (b. 19 November 1556 – d. 24 August 1594). ; 5) Magdalena (b. 14 October 1560 – d. 2 February 1562). ; 6) A daughter (b. and d. 6 April 1561). ; 7) Elisabeth Magdalena (b. Brzeg, 17 November 1562 - d. Oels, 1 February 1630), married on 1 October 1585 to Charles II of Poděbrady, Duke of Münsterberg (Ziębice)-Oels. In Berlin on 15 February 1545, George II married with Barbara (b. 10 August 1527 - d. Brzeg, 2 January 1595), daughter of Joachim II Hector, Elector of Brandenburg. They had seven children: On George II's death, his sons received all his domains except Brzeg, who was given to his widow until her own death.
Title: George I of Brieg
Content:  George I, Duke of Brieg (Brzeg) (Jerzy I brzeski; 1481/83 – 30 May 1521), was a Duke of Legnica during 1488-1505 (with his brother as co-ruler) and of Brzeg (Brieg) since 1505 until his death. He was the third and youngest son of Frederick I, Duke of Chojnów-Oława-Legnica-Brzeg-Lubin, by his wife Ludmila, daughter of George of Poděbrady, King of Bohemia.
Title: George II of Brieg
Content:  After the death of his father in 1547, George II inherited the Duchy of Brzeg (which included the towns of Oława, Strzelin, Niemcza, Kluczbork, Byczyna, Wołów and Ścinawa). In 1548, the early death of his relative Henry II of Poděbrady, made him the regent of his Duchy of Oleśnica on behalf of his sons Henry III and Charles II until 1569. Three year later, in 1551, the insubordination of his elder brother Frederick III of Legnica caused his deposition from the government and the appointing of his infant son Henry XI of Legnica as the new Duke of Legnica. George II became in the regent of the Duchy on behalf of his nephew, jointly with Balthasar von Promnitz, until 1556, when Frederick III managed to return to Legnica and retake the power. During all his 
Title: George II of Brieg
Content:  he maintain a good relationship to the Habsburgs (despite being a Lutheran) and was sent by the Emperor in some diplomatic missions. In 1548, George II took part in the coronation of Maximilian II in Prague and Bratislava, and also used the Bryeg army to maintain the internal order of the Duchy (Police Regulation of 1577). In particular, he dedicated himself to the expansion of his main residence, Brzeg, where he built a magnificent Renaissance palace, which was later destroyed by Frederick II the Great during the siege of Brzeg. As a Lutheran, he was totally committed with the reforms started by his father. He also built the Gymnasium (high school) in Brzeg (1564–1569) and, after the fire of Brzeg in 1569, the new City Hall and the towers of the St. Nicholas Church.
Title: Louis II of Brieg
Content:  Louis II of Brieg; (1380/85 – 30 May 1436), was a Duke of Brzeg (Brieg) from 1399 (until 1400 with his older brother as a co-ruler) and Duke of Legnica from 1413. He was the second son of Henry VII with a Scar, Duke of Brzeg, but the eldest born by his second wife Margareta, daughter of Siemowit III, Duke of Masovia.
Title: George III of Brieg
Content:  George III of Brieg (Jerzy III Brzeski; Brzeg, 4 September 1611 – Brzeg, 4 July 1664), was a Duke of Brzeg since 1633 (as administrator; in 1639 he took formally the title, together with his brothers until 1654) and Legnica-Wołów during 1653-1654 (with his brothers). He was the eldest son of John Christian, Duke of Brzeg-Legnica-Wołów-Oława, by his first wife Dorothea Sybille, daughter of John George, Elector of Brandenburg.
Title: George II, Duke of Münsterberg-Oels
Content:  George II was a member of the Münsterberg branch of the Bohemina noble Poděbrady family. He was the twelfth and youngest child of Duke Charles I of Münsterberg-Oels and Anna of Sagan, (1480/83-1541), daughter of Duke John II "the Mad" of Żagań. George was married with Elizabeth Kostka of Postupitz. After his father's death in 1536, George II initially ruled Münsterberg-Oels jointly with his brothers Joachim, John and Henry II. In a joint deed dated 25 June 1535, they awarded the city of Srebrna Góra, which belonged to Münsterberg (Ziębice, Minstrberk), the status of free mining town. Unlike their father, Joachim and his brothers followed the Lutheran doctrine. In 1537, they expelled the Catholic priests from Münsterberg and appointed an evangelical vicar. In 1542, Henry and his brothers pledged the heavily 
Title: George I of Brieg
Content:  After the death of his father in 1488, George I and his two older brothers John II and Frederick II succeeded him in Legnica, Chojnów and Lubin; but because all were minors, the regency was held by their mother, the Dowager Duchess Ludmila, who received from her late husband Brzeg and Oława as a widow's land (Oprawa wdowia) until her death. John II died in 1495 still under the regency of Ludmila; George I and his brother Frederick II began their personal reign only three years later, in 1498. Dowager Duchess Ludmila died in 1503 and their domains of Brzeg and Oława were inherited by his sons, who continued as co-rulers for another two years, until 1505, when they finally decided to make the division of their lands. George I received Brzeg and Lubin. On 9 June 1516 George I married with Anna (b. 1492 – d. 25 April 1550), daughter of Bogislaw X, Duke of Pomerania. They had no children and for this, on his death George I was succeeded by his brother Frederick II only in Brzeg, because Lubin was granted to Dowager Duchess Anna as Oprawa wdowia until her own death.
Title: Barbara of Brandenburg, Duchess of Brieg
Content:  In all, Barbara bore her husband seven children, two sons and five daughters. Duke George II died on 7 May 1586, after forty-one years of marriage. In his will, he left the Duchy of Brzeg to his wife as her Oprawa wdowia with the full sovereignty over this land until her own death. The Duchies of Oława and Wołów were received by her sons Joachim Frederick and John George as co-rulers, and because Barbara was the Regnant Duchess in Brzeg, both brothers decided to settle his residence in Oława. After Barbara's death, Brzeg was inherited by her only surviving son Joachim Frederick, because her other son, John George, already died in 1592.

Question: Who is the father of George II of Brieg?
Answer: Frederick II of Legnica.
Great of Legnica.
Frederick II, Duke of Legnica.
Friedrich II Herzog von Liegnitz.