Adelaide II, Abbess of Quedlinburg
Adelaide II( 1045 – 11 January 1096), a member of the Salian dynasty, was Abbess of Gandersheim from 1061 and Abbess of Quedlinburg from 1063 until her death.
Matilda, Abbess of Quedlinburg
Matilda( December 955 – 999), also known as Mathilda and Mathilde, was the first Princess- Abbess of Quedlinburg.
She was the daughter of Otto I, Holy Roman Emperor, and his second wife, Adelaide of Italy.
Agnes II, Abbess of Quedlinburg
Agnes II( Agnes of Meissen; 1139 – 21 January 1203) was a member of the House of Wettin who reigned as Princess- Abbess of Quedlinburg.
Hedwig, Abbess of Quedlinburg
Hedwig of Saxony( 31 October 1445 – 13 June 1511) was Princess- Abbess of Quedlinburg from 1458 until her death.
Dorothea Sophia, Abbess of Quedlinburg
Duchess Dorothea Sophia of Saxe-Altenburg (19 December 1587 – 10 February 1645) was Princess-Abbess of Quedlinburg.
She was the fourth child and second daughter of Friedrich Wilhelm
I, Duke of Saxe-Weimar, and his first wife, Sophie of Württemberg.
Sophie of Württemberg, Duchess of Saxe-Weimar
Sophie of Württemberg (20 November 1563 - 21 July 1590), was a German noblewoman member of the House of Württemberg and by marriage Duchess of Saxe-Weimar.
Born in Stuttgart, she was the youngest of twelve children born from the marriage of Christoph, Duke of Württemberg and Anna Maria of Brandenburg-Ansbach.
From her eleven older siblings, nine survive adulthood: Eberhard, Hereditary Prince of Württemberg, Hedwig (by marriage Landgravine of Hesse-Marburg),
Elisabeth (by her two marriages Countess of Henneberg-Schleusingen and Countess Palatine of Veldenz-Lauterecken), Sabine (by marriage Landgravine of Hesse-Kassel), Emilie (by marriage Countess Palatine of Simmern-Sponheim), Eleonore (by her two marriages Princess of Anhalt and Landgravine of Hesse-Darmstadt), Louis III, Duke of Württemberg, Dorothea Maria (by marriage Countess Palatine of Sulzbach) and Anna (by her two marriages Duchess of Oława and Legnica).
Anna Sophia II, Abbess of Quedlinburg
Landgravine Anna Sophia of Hesse- Darmstadt( 17 December 1638 – 13 December 1683) was a German noblewoman who reigned as Princess- Abbess of Quedlinburg under the name Anna Sophia II.
Anna Amalia, Abbess of Quedlinburg
Princess Anna Amalia of Prussia (9 November 1723 – 30 March 1787) was Princess-Abbess of Quedlinburg.
She was one of ten surviving children of King Frederick William I of Prussia and Sophia Dorothea of Hanover.
Anna Sophia I, Abbess of Quedlinburg
Countess Palatine Anna Sophia of Zweibrücken-Birkenfeld (2 April 1619 - 1 September 1680) reigned as Princess-Abbess of Quedlinburg and, as such, she is referred to as Anna Sophia I.
Anna Sophia was born in Birkenfeld to George William, Count Palatine of Zweibrücken-Birkenfeld, and his first wife, Countess Dorothea of Solms-Sonnenwalde.
The young countess palatine pursued an ecclesiastical career and was appointed princess-abbess of Quedlinburg on 15 July 1645, succeeding Princess-Abbess Dorothea Sophia.
She succeeded to the abbey-principality during the Thirty Years' War, which ended in 1648, and her small territory suffered invasion of the Swedish army.
Anna Sophia I often came into conflicts with John George II, Elector of Saxony, and the Quedlinburg city council.
Upon her death in Quedlinburg Abbey, she was succeeded by Landgravine Anna Sophia of Hesse-Darmstadt who reigned as Anna Sophia II.
Adelaide I, Abbess of Quedlinburg
Adelaide I( 973/74 – 14 January 1044 or 1045), a member of the royal Ottonian dynasty was the second Princess- abbess of Quedlinburg from 999, and Abbess of Gernrode from 1014, and Abbess of Gandersheim from 1039 until her death, as well as a highly influential kingmaker of medieval Germany.

Question: Who is the maternal grandfather of Dorothea Sophia, Abbess Of Quedlinburg?