Question: Who is the paternal grandfather of John Of Hesse-Braubach?

John of Hesse-Braubach
John of Hesse-Braubach (17 June 1609, Darmstadt - 1 April 1651, Ems) was a German nobleman and general.
He was the Landgrave of Hesse-Braubach.
His parents were Louis V, Landgrave of Hesse-Darmstadt and Magdalene of Brandenburg.
He was married on 30 September 1647 to Johannetta of Sayn-Wittgenstein, the daughter of Ernest, Count of Sayn-Wittgenstein-Sayn and Louise Juliane of Erbach.
The marriage was childless.
Johannetta later married Johann Georg I, Duke of Saxe-Eisenach.
Gilbert Talbot, 3rd Baron Talbot
Gilbert Talbot, 3rd Baron Talbot( c. 1332–1387) was an English nobleman and soldier.
He was the grandfather of John Talbot, 1st Earl of Shrewsbury.
John Christian Kunkel
John Christian Kunkel (September 18, 1816 – October 14, 1870) was a Whig and Republican member of the U.S. House of Representatives from Pennsylvania.
He was the grandfather of John Crain Kunkel.
Johannetta of Sayn-Wittgenstein (1632–1701)
Johannetta of Sayn- Wittgenstein( 27 August 1632 – 28 September 1701), was Sovereign Countess of Sayn- Wittgenstein- Sayn- Altenkirchen from 1648 to 1701.
She was also Landgravine of Hesse- Braubach by marriage to John, Landgrave of Hesse- Braubach, and Duchess of Saxe- Marksuhl( later Saxe- Eisenach) by marriage to John George I, Duke of Saxe- Eisenach.
Louis V, Landgrave of Hesse-Darmstadt
Louis V of Hesse-Darmstadt (24 September 1577 – 27 July 1626) was the Landgrave of Hesse-Darmstadt from 1596 to 1626.
He was born on 24 September 1577 as the son of George I, Landgrave of Hesse-Darmstadt and Magdalene of Lippe.
In 1604 he inherited a part of Hessen-Marburg after the death of Louis IV of Hesse-Marburg who was childless.
The other half went to Maurice of Hesse-Kassel (or Hesse-Cassel), but since Maurice was a Calvinist, Ludwig claimed a right on the whole of Hesse-Marburg.
Lutheran professors of the University of Marburg who refused to convert to Calvinism founded in 1607 the University of Gießen which was named "Ludoviciana".
This led to a conflict during the Thirty Years' War, between Louis V, who stood on the side of the Emperor, and Maurice, who was on the side of the Protestants.
Hesse-Darmstadt suffered severely from the ravages from the Swedes during the conflict.
The Landgrave died in 1626 and he was succeeded by George II, Landgrave of Hesse-Darmstadt.
In 1722, Johann Georg Liebknecht, an astronomer at the University of Gießen, named a star, which he thought was a planet, Sidus Ludoviciana after Ludwig V.
Philip, Landgrave of Hesse-Philippsthal
Philip of Hesse- Philippsthal( 14 December 1655 – 18 June 1721) was the son of William VI, Landgrave of Hesse- Kassel and Hedwig Sophia of Brandenburg.
He was the first landgrave of Hesse- Philippsthal from 1663 to 1721 and the founder of the fifth branch of the house of Hesse.
Landgravine Auguste of Hesse-Homburg
Landgravine" Auguste" Fredericka of Hesse- Homburg( full German name:" Auguste Friederike, Landgräfin von Hessen- Homburg"; 28 November 1776, Bad Homburg vor der Höhe, Landgraviate of Hesse- Homburg, Holy Roman Empire – 1 April 1871, Ludwigslust, Grand Duchy of Mecklenburg- Schwerin), was a member of the House of Hesse and a Landgravine of Hesse- Homburg by birth.
Through her marriage she was also a member of the House of Mecklenburg and Hereditary Grand Duchess of Mecklenburg- Schwerin.
She was the sixth child and fourth daughter of Frederick V, Landgrave of Hesse- Homburg and his wife Landgravine Caroline of Hesse- Darmstadt, in turn daughter of Louis IX, Landgrave of Hesse- Darmstadt.
John Westley
Rev. John Westley( 1636 – 78) was an English nonconformist minister.
He was the grandfather of John Wesley( founder of Methodism).
Prince Wilhelm of Hesse-Philippsthal-Barchfeld
Prince Wilhelm of Hesse(" Wilhelm Ernst Alexis Hermann"; 1 March 1905 – 30 April 1942) was German soldier and heir to the headship of the Hesse- Philippsthal line of the House of Hesse.
As a member of the House of Hesse he was styled" His Highness Prince Wilhelm of Hesse".
Charles I, Landgrave of Hesse-Kassel
Charles of Hesse- Kassel( 3 August 1654 – 23 March 1730), of the House of Hesse, was the Landgrave of Hesse- Kassel from 1670 to 1730.

Answer: George I, Landgrave of Hesse-Darmstadt