Question: By what nickname was the father of George Frederick of Brandenburg-Ansbach known ? 
Context: Joachim Ernst, Margrave of Brandenburg-Ansbach (22 June 1583, Cölln an der Spree – 7 March 1625, Ansbach) was a German nobleman.  He ruled as margrave of Brandenburg-Ansbach from 1603 to 1625, succeeding his cousin George Frederick and succeeded by his son Frederick III. Frederick Richard Leach (1837-1904) was an English master decorator, mural and stained glass painter based in Cambridge.  He worked with the architects George Frederick Bodley and George Gilbert Scott Junior, the designer William Morris and the church craftsman Charles Eamer Kempe on many Victorian Gothic revival churches, Cambridge college interiors and church restorations. Dorothea Friederike of Brandenburg-Ansbach (12 August 1676, Ansbach – 13 March 1731, Hanau) was the daughter of Margrave John Frederick of Brandenburg-Ansbach (1654 – 1686) and his first wife, Margravine Johanna Elisabeth of Baden-Durlach (1651 – 1680).  She was a half-sister of Queen Caroline of Great Britain, the wife of King George II Frederick George D'Utassy or George Frederick D'Utassy (November 26, 1827 – May 5, 1892) was an officer in the Union Army in the American Civil War who led the famous "Garibaldi Guard", or 39th New York Volunteer Infantry Regiment, from 1861 to 1863.  The flamboyant Hungarian Colonel was court-martialed in 1863 for fraud and conduct prejudicial to military discipline. George of Brandenburg-Ansbach (German: "Georg or Jürgen der Fromme" ) (4 March 1484 – 27 December 1543), known as George the Pious, was a Margrave of Brandenburg-Ansbach from the House of Hohenzollern. John Frederick, Margrave of Brandenburg-Ansbach (18 October 1654 – 22 March 1686) succeeded his father Albert II as margrave of Ansbach in 1667.  He married his second wife Eleonore Erdmuthe of Saxe-Eisenach on 4 November 1681.  Their daughter Wilhelmine Charlotte Caroline, Margravine of Brandenburg-Ansbach (Caroline of Ansbach) married George II of Great Britain before he became king. George Frederick II, Margrave of Brandenburg-Ansbach George Frederick of Brandenburg-Ansbach (German: "Georg Friedrich der Ältere" ; 5 April 1539 in Ansbach – 25 April 1603) was Margrave of Ansbach and Bayreuth, as well as Regent of Prussia.  He was the son of George, Margrave of Brandenburg-Ansbach and a member of the House of Hohenzollern.  He married firstly, in 1559, Elisabeth of Brandenburg-Küstrin (29 August 1540 – 8 March 1578).  He married secondly, in 1579, Sophie of Brunswick-Lüneburg (30 October 1563 – 1639), daughter of William of Brunswick-Lüneburg and Dorothea of Denmark. Frederick, Prince of Orange-Nassau (English: William George Frederick , Dutch: "Willem George Frederik" ; 15 February 1774 6 January 1799) was the youngest son of William V, Prince of Orange and Stadtholder of the Dutch Republic and Princess Wilhelmina of Prussia, sister of King Frederick William II.  Commonly called Fritz inside the family, he chose a military career with the Holy Roman Empire, he died of a fever while serving in Padua, Italy. Charles Frederick Pardon (28 March 1850 - 18 April 1890) was editor of "Wisden Cricketers' Almanack" between 1887 and 1890.  His father was the journalist George Frederick Pardon.
Answer: George the Pious