Louis VI, Elector Palatine
Ludwig VI, Elector Palatine (4 July 1539 in Simmern – 22 October 1583 in Heidelberg), was an Elector from the Palatinate-Simmern branch of the house of Wittelsbach.
He was the first-born son of Frederick III, Elector Palatine and Marie of Brandenburg-Kulmbach.
Adolphus Frederick IV, Duke of Mecklenburg-Strelitz
Adolphus Frederick IV( 5 May 1738 – 2 June 1794) was a Duke of Mecklenburg- Strelitz.
Isabella del Balzo
Isabella of Balzo (24 June 1465 - 1533) was a Queen consort of Naples.
She was the second consort and only Queen consort of Frederick IV of Naples.
Isabella was also suo jure Duchess of Andria and Venosa and Princess of Altamura.
Sophia Dorothea of Hanover
Sophia Dorothea of Hanover( – 28 June 1757) was a Queen consort in Prussia as spouse of Frederick William I.
She was the sister of George II, King of Great Britain, and the mother of Frederick II, King of Prussia.
Frederick IV, Duke of Lorraine
Frederick IV( 15 April 1282 – 21 April 1329), called the Fighter, was the Duke of Lorraine from 1312 to his death.
Anne Sophie Reventlow
Anne Sophie von Reventlow( 16 April 1693 – 7 January 1743) was Queen of Denmark and Norway from 1721 to 1730 as the second wife of Frederick IV of Denmark and Norway.
Frederick IV, Elector Palatine
Frederick IV, Elector Palatine of the Rhine (5 March 1574 – 19 September 1610),
only surviving son of Louis VI, Elector Palatine and Elisabeth of Hesse, called "Frederick the Righteous" (French: "Frédéric IV le juste").
Louis Philip, Count Palatine of Simmern-Kaiserslautern
Louis Philip( German: Ludwig Philipp)( 23 November 1602 – 6 January 1655) was the Count Palatine of Simmern- Kaiserslautern from 1610 until 1655.
Philip acted as Administrator of the Palatinate between 1632 and 1648.
Philip was born in Heidelberg, as the youngest son of Frederick IV, Elector Palatine.
After his father's death in 1610, Louis Philip inherited his territories around Simmern, Kaiserslautern and Sponheim.
Philip was appointed as Administrator( Regent) of the Palatinate after the 1632 death of the Elector Frederick, and held that post until the restoration of Frederick's son Charles in 1648.
Philip died in Krossen and was buried in Simmern.
Prince William of Denmark
Prince William of Denmark and Norway or Prince Vilhelm (21 February 1687 – 23 November 1705) was the youngest son of Christian V of Denmark and Charlotte Amalie of Hesse-Kassel, and thus a younger brother of Frederick IV.
John II, Burgrave of Nuremberg
John II of Nuremberg( 1309 – 1357) was a Burgrave of Nuremberg from the House of Hohenzollern.
He was the elder son of Frederick IV of Nuremberg and Margarete of Görz.

Question: Where did Frederick Iv, Elector Palatine's father die?
Answer: Heidelberg