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.
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.
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.
Henry of Stolberg
Count Henry of Stolberg (2 January 1509 – 12 November 1572 at Stolberg Castle) was a German nobleman.
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.
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.
Hedwig, Abbess of Quedlinburg
Hedwig of Saxony( 31 October 1445 – 13 June 1511) was Princess- Abbess of Quedlinburg from 1458 until her death.
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 III, Abbess of Quedlinburg
Anna III, also known as Anna of Stolberg (3 April 1565 – 12 May 1601) was Princess-Abbess of Quedlinburg from 1584 until her death.
Anna was the daughter of Count Henry of Stolberg (1509–1572) and his wife, Elisabeth of Gleichen (died 1578).
Anna III was elected to succeed Elisabeth II, Abbess of Quedlinburg.
The election of the new princess-abbess was confirmed by Holy Roman Emperor Rudolf II.
She frequently confronted Quedlinburg city council and the city patron, Christian I, Elector of Saxony, and appealed to the Emperor for support.
Elector Christian I died in 1591 and was succeeded by Elector Christian II under the regency of Frederick William I, Duke of Saxe-Weimar.
The Princess-Abbess selected Anne Margaret of Brunswick-Harburg as her coadjutrix but the Duke of Saxe-Weimar refused to consent as he wanted his own sister, Maria, to succeed Anna III.
Anna III died suddenly aged 36 after a walk.
The official cause of her death was stroke.
She was succeeded by her enemy's sister.
Maria, Abbess of Quedlinburg
Duchess Maria of Saxe-Weimar (7 October 1571 - 7 March 1610) was Princess-Abbess of Quedlinburg from 1601 until her death.
Born in Weimar, Maria was the daughter of John William, Duke of Saxe-Weimar, and Dorothea Susanne of Simmern.
Princess-Abbess Anna III of Quedlinburg died on 12 May 1601.
The provost of the congregation had died of plague and had not been replaced.
Dorothea was suggested as Anna III's successor by the guardian of the abbey, her brother, Frederick William I, Duke of Saxe-Weimar.
Holy Roman Emperor Rudolf II confirmed her election on 2 July.
Her reign was calm.
She proved to be unwilling to confront the abbey's protectors, the Dukes of Saxony, which led to the decrease in her own temporal authority.
She died suddenly in Halle, Saxony-Anhalt, on her way to Dresden, and was buried in Quedlinburg.
She was succeeded by Princess Dorothea of Saxony.

Question: When did Anna Iii, Abbess Of Quedlinburg's father die?
Answer: 12 November 1572