Title: Christian William of Brandenburg
Content:  Christian William married three times. His first wedding took place on 1 January 1615 in Wolfenbüttel, where he married Dorothea (1596-1643), a daughter of the Duke Henry Julius of Brunswick-Wolfenbüttel. From this marriage, he had a daughter, Sophie Elisabeth (1616-1650), married in 1638 to Duke Frederick William II of Saxe-Altenburg (1603-1669). On 22 February 1650 in Prague, he married Barbara Eusebia (d. 1656), a daughter of Count Jaroslav Borzita of Martinice and Maria Eusebie von. On 28 May 1657, he married, again in Prague, to Countess Maximiliane (1608-1663), daughter of Count Weichard of and Sidonia von.
Title: Christian William of Brandenburg
Content:  Christian Wilhelm was a son of Elector Joachim Frederick of Brandenburg (1546-1608) from his first marriage with Catherine (1549-1602), a daughter of Margrave John of Brandenburg-Küstrin (1513-1571). He was elected as Archbishop of Magdeburg in 1598. However, the city of Magdeburg did not recognize him as Prince-Bishop, because his election had not been confirmed by the emperor. When he married in 1614, he assumed the title of Lutheran administrator on. That same year, he also became coadjutor of Halberstadt. In 1624, he became administrator of Halberstadt. During the Thirty Years' War, he entered into an alliance with Denmark. In 1626, he led an army from Lower Saxony into the Battle of Dessau Bridge. After Wallenstein won this battle, he fled abroad. In 1629, he fled to the court of King 
Title: Christian William of Brandenburg
Content:  Christian Wilhelm of Brandenburg (28 August 1587 in Wolmirstedt &ndash; 1 January 1665 in Zinna Abbey) was a titular Margrave of Brandenburg, and from 1598 to 1631 Archbishop of Magdeburg.
Title: Joachim Frederick, Elector of Brandenburg
Content:  – 10 June 1600) ; Ernest (13 April 1583 – 18 September 1613) ; Barbara Sophie (16 November 1584 – 13 February 1636), married John Frederick, Duke of Württemberg ; Girl [1585/6] ; Christian William (28 August 1587 – 1 January 1665) Marie Eleonore (22 March 1607 &ndash; 18 February 1675), married Louis Philip, Count Palatine of Simmern-Kaiserslautern Joachim Frederick was born in Cölln to John George, Elector of Brandenburg, and Sophie of Legnica. He served as administrator of the Archbishopric of Magdeburg from 1566 to 1598, then succeeded his father as Elector of Brandenburg in 1598. Joachim Frederick was succeeded at his death by his son John 
Title: Joachim Frederick, Elector of Brandenburg
Content: John Sigismund, Elector of Brandenburg (8 November 1572 – 23 December 1619) ; Anne Catherine (26 June 1575 – 29 March 1612), married King Christian IV of Denmark ; Girl [1576] ; John George, Duke of Jägerndorf (16 December 1577 – 2 March 1624) married Eva Christina of Württemberg (1590 - 1657), daughter of Frederick I, Duke of Württemberg and Sibylla of Anhalt. Elected Bishop of Strasbourg 1592; resigned 1604.  Herrenmeister (Grand Master) of the Order of Saint John from 1616 until his death. ; August Frederick (16 February 1580 – 23 April 1601) ; Albert Frederick (29 April 1582 – 3 December 1600) ; Joachim (13 April 
Title: Frederick William, Elector of Brandenburg
Content:  Frederick William (Friedrich Wilhelm; 16 February 1620 – 29 April 1688) was Elector of Brandenburg and Duke of Prussia, thus ruler of Brandenburg-Prussia, from 1640 until his death in 1688. A member of the House of Hohenzollern, he is popularly known as "the Great Elector" (der Große Kurfürst) because of his military and political achievements. Frederick William was a staunch pillar of the Calvinist faith, associated with the rising commercial class. He saw the importance of trade and promoted it vigorously. His shrewd domestic reforms gave Prussia a strong position in the post-Westphalian political order of north-central Europe, setting Prussia up for elevation from duchy to kingdom, achieved under his son and successor.
Title: Cecilia of Brandenburg
Content:  Cecilia was the daughter of Elector Frederick I of Brandenburg (1371–1440) from his marriage to Elizabeth (1383–1442), daughter of Duke Frederick of Bavaria-Landshut. Cecilia's brothers were the reigning Electors of Brandenburg, first Frederick II and later Albrecht III Achilles. She married on 30 May 1423 in Berlin Duke William III of Brunswick-Lüneburg (1392–1482). The marriage had been arranged by Emperor Sigsmund, like that of her sister Magdalena with Duke Frederick II of Brunswick-Lüneburg. Both couples had been engaged on 3 March 1420. William and his brother Henry II had promised Cecila as jointure Bodenteich Castle plus an annual pensionof 2000 guilders. After an exchange of territories, Cecilia received Wolfenbüttel Castle instead. Bishop Magnus of Saxe-Lauenburg tried to redeem pledges to Duke Henry II, and in particular 
Title: John Sigismund, Elector of Brandenburg
Content: George William of Brandenburg (13 November 1595 – 1 December 1640). His successor. ; Anne Sophia of Brandenburg (15 March 1598 – 19 December 1659). Married Frederick Ulrich, Duke of Brunswick-Lüneburg. ; Maria Eleonora of Brandenburg (11 November 1599 – 28 March 1655). Married Gustavus Adolphus of Sweden. They were parents of Christina of Sweden. ; Catherine of Brandenburg (28 May 1602 – 27 August 1644). Married first Gabriel Bethlen, Prince of Transylvania and secondly Franz Karl of Saxe-Lauenburg. ; Joachim Sigismund of Brandenburg (25 July 1603 – 22 February 1625). ; Agnes of Brandenburg (31 August 1606 – 12 March 1607). ; John Frederick of Brandenburg (18 August 1607 – 1 March 1608). ; Albrecht Christian of Brandenburg (7–14 March 1609). On 30 October 1594, John Sigismund married Anna of Prussia, daughter of Albert Frederick, Duke of Prussia (1553–1618). She was the elder sister of his stepmother. They were parents to eight children: 
Title: Brandenburg-Schwedt
Content: 1) Philip William (1669–1711), married Princess Johanna Charlotte of Anhalt-Dessau ; 2) Frederick William (1700–1771), married in 1734 Princess Sophia Dorothea of Prussia (1719–1765) ; 3) Sophia Dorothea (1736-1798), married Frederick II Eugene, Duke of Württemberg ; 4) Elisabeth Louise (1738-1820), married her uncle Prince Augustus Ferdinand of Prussia ; 5) George Philip (1741-1742) ; 6) Philippine (1745-1800), married Frederick II, Landgrave of Hesse-Kassel (or Hesse-Cassel) ; 7) George Frederick (1749-1751) ; 8) Friederike Dorothea Henrietta (1700–1701) ; 9) Henrietta Maria (1702–1782); married in 1716 Hereditary Prince Frederick Louis of Württemberg (1698–1731) ; 10) George William (* / † 1704) ; 11) Frederick Henry (1709–1788); married in 1739 Princess Leopoldine Marie of Anhalt-Dessau (1716–1782) ; 12) Louise (1750–1811), married Prince (later Duke) Leopold III of Anhalt-Dessau ; 13) Friederike Charlotte (1745–1808), last Abbess of Herford Abbey ; 14) Charlotte (1710–1712) ; 15) Marie Amalie (1670–1739) 
Title: Joachim II Hector, Elector of Brandenburg
Content: John George, Elector of Brandenburg (1525–1598), had issue ; Barbara of Brandenburg, Duchess of Brieg (1527–1595), had issue ; Elisabeth (1528–1529) ; Frederick IV of Brandenburg (1530–1552), Archbishop of Magdeburg and Bishop of Halberstadt ; Albrecht (1532–1532) ; Georg (1532–1532) ; Paul (1534–1534) Elisabeth Magdalena (1537–1595), married Francis Otto, Duke of Brunswick-Lüneburg, ; Sigismund (1538–1566), Archbishop of Magdeburg and Bishop of Halberstadt ; Hedwig (1540–1602), married Julius, Duke of Brunswick-Lüneburg, ; Sophia (1541–1564), married William of Rosenberg, ; Joachim (1543–1544) ; Sybilla von Brandenburg Hohenzollern Markgräfin (1545-1595), married Thelius M. Dachte Doetter With Magdalena of Saxony (1507-1534): With Hedwig Jagiellon (1513–1573):

Question: Verify the following claims with "True" or "False": Christian William of Brandenburg's spouse was Joachim III Frederick, Elector of Brandenburg.
Answer: False