Waldemar V, Prince of Anhalt-Köthen
Waldemar V, Prince of Anhalt- Köthen( died 1436) was a German prince of the House of Ascania and ruler of the principality of Anhalt- Köthen.
He was the second son of Albert IV, Prince of Anhalt- Köthen, by his first wife Elisabeth, daughter of Gebhard III, Count of Mansfeld.
Louis of Anhalt-Köthen (the Younger)
Louis of Anhalt- Köthen, called The Younger( 19 October 1607, in Köthen – 15 March 1624, in Köthen), was a German prince of the House of Ascania and heir to the principality of Anhalt- Köthen.
He was the only son of Louis I, Prince of Anhalt- Köthen, by his first wife Amöena Amalie, daughter of Arnold III, Count of Bentheim- Steinfurt- Tecklenburg- Limburg.
William Louis, Prince of Anhalt-Köthen
William Louis of Anhalt-Köthen (3 August 1638, in Köthen – 13 April 1665, in Köthen), was a German prince of the House of Ascania and ruler of the principality of Anhalt-Köthen.
He was the second son of Louis I, Prince of Anhalt-Köthen, but second-born son of his second wife Sophie, daughter of Simon VI, Count of Lippe.
Augustus Christian Frederick, Duke of Anhalt-Köthen
Augustus Christian Frederick of Anhalt-Köthen (Köthen, 18 November 1769 – Schloss Geuz, 5 May 1812), was a German prince of the House of Ascania, ruler of the principality of Anhalt-Köthen, and from 1806 the first "Duke of Anhalt-Köthen."
He was the eldest son of Karl George Lebrecht, Prince of Anhalt-Köthen, by his wife Louise Charlotte, daughter of Frederick, Duke of Schleswig-Holstein-Sonderburg-Glücksburg.
Albert VI, Prince of Anhalt-Köthen
Albert VI, Prince of Anhalt- Köthen( died 9 January 1475) was a German prince of the House of Ascania and ruler of the principality of Anhalt- Köthen.
He was the youngest son of Albert IV, Prince of Anhalt- Köthen, but the eldest child of his second wife Elisabeth, daughter of Gebhard XI, Count of Querfurt.
Karl George Lebrecht, Prince of Anhalt-Köthen
Karl George Lebrecht of Anhalt- Köthen( Köthen, 15 August 1730 – Semlin, 17 October 1789), was a German prince of the House of Ascania and ruler of the principality of Anhalt- Köthen.
He was the second( but eldest surviving) son of Augustus Louis, Prince of Anhalt- Köthen, by his second wife Christine Johanna Emilie, daughter of Erdmann II, Count of Promnitz- Pless.
Magnus, Prince of Anhalt-Köthen
Magnus, Prince of Anhalt- Köthen( 1455 – 29 October 1524) was a German prince of the House of Ascania and ruler of the principality of Anhalt- Köthen.
He was the third( but eldest surviving) son of Adolph I, Prince of Anhalt- Köthen, by his wife Cordula, daughter of Albert III, Count of Lindau- Ruppin.
Louis I, Prince of Anhalt-Köthen
Louis I of Anhalt-Köthen (17 June 1579 in Dessau – 7 January 1650 in Köthen), was a German prince of the House of Ascania and ruler of the unified principality of Anhalt.
From 1603, he was ruler of the principality of Anhalt-Köthen.
He was also a founder of the first German Society (the Fruitbearing Society).
Louis was the seventh son of Joachim Ernest, Prince of Anhalt, but fifth-born son of his second wife Eleonore, daughter of Christoph, Duke of Württemberg.
Adolph I, Prince of Anhalt-Köthen
Adolph I, Prince of Anhalt- Köthen( died Zerbst, 28 August 1473), was a German prince of the House of Ascania and ruler of the principality of Anhalt- Köthen.
He was the eldest son of Albert IV, Prince of Anhalt- Köthen, by his first wife Elisabeth, daughter of Gebhard III, Count of Mansfeld.
Philip, Prince of Anhalt-Köthen
Philip, Prince of Anhalt-Köthen (31 May 1468 – 13 November 1500) was a German prince of the House of Ascania and ruler of the principality of Anhalt-Köthen.
He was the only son of Albert VI, Prince of Anhalt-Köthen, by his wife Elisabeth, daughter of Günther II, Count of Mansfeld.

Question: Who is the paternal grandfather of William Louis, Prince Of Anhalt-Köthen?