Joachim Ernest, Duke of Schleswig-Holstein-Sonderburg-Plön
Joachim Ernest of Schleswig-Holstein- Sonderburg- Plön( 29 August 1595 – October 5, 1671), also" Joachim Ernest of Schleswig- Holstein- Plön", was the first Duke of Schleswig- Holstein- Sonderburg- Plön, which emerged from a division of the Duchy of Schleswig- Holstein- Sonderburg.
John Adolphus, Duke of Schleswig-Holstein-Sonderburg-Plön
John Adolphus of Schleswig- Holstein- Sonderburg- Plön( or" Hans Adolf"; 8 April 1634, Ahrensbök – 2 July 1704 Ruhleben) was the second Duke of Schleswig- Holstein- Sonderburg- Plön, which had been created by a division of the Duchy of Schleswig- Holstein- Sonderburg.
Friedrich Ferdinand, Duke of Schleswig-Holstein
Friedrich Ferdinand of Schleswig- Holstein- Sonderburg- Glücksburg( 12 October 1855 – 21 January 1934) was the fourth Duke of Schleswig- Holstein- Sonderburg- Glücksburg and became Duke of Schleswig- Holstein in 1931.
Karl, Duke of Schleswig-Holstein-Sonderburg-Glücksburg
Karl of Schleswig -Holstein- Sonderburg- Glücksburg( 30 September 1813 at Gottorp in Schleswig, Duchy of Schleswig – 24 October 1878 at Luisenlund, Glücksburg, in Schleswig- Holstein, Prussia) was the second Duke of Schleswig- Holstein- Sonderburg- Glücksburg.
Karl was the eldest son of Friedrich Wilhelm, Duke of Schleswig- Holstein- Sonderburg- Glücksburg and Princess Louise Caroline of Hesse- Kassel and an elder brother of Christian IX of Denmark.
Karl became Duke of Schleswig- Holstein- Sonderburg- Glücksburg upon his father's death on 27 February 1831.
Philip Louis, Duke of Schleswig-Holstein-Sonderburg-Wiesenburg
Philip Louis of Schleswig- Holstein- Sonderburg- Wiesenburg( born 27 October 1620 in Beck; died: 10 March 1689 in Schneeberg) was the founder and first duke of the line Schleswig- Holstein- Sonderburg- Wiesenburg.
His branch of the House of Schleswig- Holstein- Sonderburg is named after Wiesenburg Castle, near Zwickau.
Anna Margaret of Hesse-Homburg
Anna Margaret of Hesse-Homburg, (31 August 1629 in Homburg – 3 August 1686 in Oberkotzau), was a Landgravine of Hesse-Homburg by birth and by marriage Duchess of Schleswig-Holstein-Sonderburg-Wiesenburg.
Sophie Elisabeth of Schleswig-Holstein-Sonderburg-Wiesenburg
Sophie Elisabeth of Schleswig-Holstein-Sonderburg-Wiesenburg (4 May 1653 - 19 August 1684), was a German noblewoman member of the House of Oldenburg and by marriage Duchess of Saxe-Zeitz.
Born in Homburg vor der Höhe, she was the third of fifteen children born from the second marriage of Philip Louis, Duke of Schleswig-Holstein-Sonderburg-Wiesenburg with Anna Margaret of Hesse-Homburg.
From her fourteen full-siblings, only seven survived adulthood: Frederick, Charles Louis, Eleanor Margaret (by marriage Princess of Liechtenstein), William Christian, Sophie Magdalene (Abbess in Quedlinburg), Anna Fredericka Philippine (by marriage Duchess of Saxe-Zeitz-Pegau-Neustadt) and Johanna Magdalene Louise.
In addition, she had two further older half-siblings from her father's first marriage with Catharina of Waldeck-Wildungen, of whom only one survived:
Dorothea Elisabeth (by her two marriages Countess of Sinzendorf, Rabutin and Marchioness de Fremonville).
Elisabeth of Schleswig-Holstein-Sonderburg
Elisabeth of Schleswig- Holstein- Sonderburg( 24 September 1580 – 21 December 1653 in Rügenwalde in Pomerania) was a German noblewoman.
She was a Duchess of Schleswig- Holstein- Sonderburg by birth and by marriage Duchess of Pomerania- Stettin.
Friedrich, Duke of Schleswig-Holstein-Sonderburg-Glücksburg
Friedrich of Schleswig- Holstein- Sonderburg- Glücksburg( 23 October 1814 in Schleswig, Duchy of Schleswig – 27 November 1885 in Luisenlund, Schleswig- Holstein, Prussia) was the third Duke of Schleswig- Holstein- Sonderburg- Glücksburg.
Friedrich was the second- eldest son of Friedrich Wilhelm, Duke of Schleswig- Holstein- Sonderburg- Glücksburg and Princess Louise Caroline of Hesse- Kassel and an elder brother of Christian IX of Denmark.
Friedrich inherited the title of Duke of Schleswig- Holstein- Sonderburg- Glücksburg upon his childless brother Karl's death on 14 October 1878.
Princess Alexandra Victoria of Schleswig-Holstein-Sonderburg-Glücksburg
Princess Alexandra Victoria of Schleswig-Holstein- Sonderburg- Glücksburg( 21 April 1887 – 15 April 1957) was a daughter of Friedrich Ferdinand, Duke of Schleswig- Holstein and his wife Princess Karoline Mathilde of Schleswig- Holstein- Sonderburg- Augustenburg.

Question: When did Sophie Elisabeth Of Schleswig-Holstein-Sonderburg-Wiesenburg's mother die?
Answer: 3 August 1686