Question: When did Charles Frederick II's birthplace fall?

Context paragraphs:
paragraph_text: From 1657 to 1738 Merseburg was the residence of the Dukes of Saxe-Merseburg, after which it fell to the Electorate of Saxony. In 1815 following the Napoleonic Wars, the town became part of the Prussian Province of Saxony.
title: Merseburg
paragraph_text: Edward Proger (16 June 1621 or 1618 – 31 December 1713) was a Member of Parliament for Brecknockshire/Breconshire, Page of Honour to King Charles I, Groom of the Bedchamber for King Charles II and Lord of the Manor of West Stow. He was Keeper of the Middle Park and Harewarren for 48 years.
title: Edward Proger
paragraph_text: Frederick Charles Adler (usually known as F. Charles Adler) (born on 2 July 1889 in London and died 16 February 1959 in Vienna) was an English-German conductor.
title: Frederick Charles Adler
paragraph_text: Magnus Maximilian Graf von Alopaeus (21 January 1748—16 May 1822) (, "Alopeus Maksim Maksimovich") was a Finland-Swedish diplomat, born at Vyborg and educated at Åbo, afterwards at Göttingen, was intended for the ecclesiastical profession, but his employment as secretary by Count Nikita Ivanovich Panin, Russian ambassador at the Swedish court, was the first step in a gradual rise through the political ranks. In 1783, Alopeus was appointed resident-minister at the court of the Bishop of Lübeck, where he maintained the correspondence between Tsesarevich Paul and Frederick II. In 1789, Alopeus was sent to Berlin where he stayed for 6 years, gained favor from Frederick William II, and secured the signing of the allied treaty between Russia and Prussia. He was named minister plenipotentiary at the court of Berlin, by the Empress Catherine, in 1790.
title: Maximilian von Alopaeus
paragraph_text: The genus "Darwinius" was named in commemoration of the bicentenary of the birth of Charles Darwin, and the species name "masillae" honors Messel where the specimen was found. The creature appeared superficially similar to a modern lemur.
title: Darwinius
paragraph_text: USS "Charles R. Greer" (DE-23) was an constructed for the United States Navy during World War II. She was promptly sent off into the Pacific Ocean to protect convoys and other ships from Japanese submarines and fighter aircraft. At the end of the war, she returned to the United States with two battle stars.
title: USS Charles R. Greer (DE-23)
paragraph_text: Andronikos V Palaiologos was the only known son of Emperor John VII Palaiologos and Irene Gattilusio, daughter of Francesco II Gattilusio. At the time of his birth John VII was Regent of the Byzantine Empire for his uncle Manuel II Palaiologos. At an unknown date, probably after his father settled in Thessalonica, Andronikos V was proclaimed nominal co-emperor, probably by 1403/1404. He predeceased his father, dying probably in 1407 and with that ended the furthest line of descent of Byzantine (co-)emperors possible from his dynasty's founder, Michael VIII.
title: Andronikos V Palaiologos
paragraph_text: Cornstalk Heights is a neighborhood in Harriman, Tennessee, United States. Platted in the early 1890s as a residential area for Harriman's upper and professional classes, the neighborhood contains over 100 buildings added to the National Register of Historic Places in 1991 as a historic district for their architectural and historical significance. The neighborhood is named for the home of Harriman founder Frederick Gates, which once stood near the eastern end of the district.
title: Cornstalk Heights
paragraph_text: Anna of Hohenstaufen (1230 – April 1307), born Constance, was an Empress of Nicaea. She was a daughter of Frederick II, Holy Roman Emperor and Bianca Lancia.
title: Anna of Hohenstaufen
paragraph_text: In the final episode, Eric returns to Point Place for the New Year and he and Donna kiss. It is presumed that they end up together again at the end of the series and the end of the 1970s.
title: List of That '70s Show characters
paragraph_text: Maximilian Emanuel of Württemberg-Winnental (Stuttgart, February 27, 1689 – Dubno, September 25, 1709), son of Frederick Charles of Württemberg-Winnental and Margravine Eleonore Juliane of Brandenburg-Ansbach, was a volunteer in the army of Charles XII of Sweden and a devoted friend to the king.
title: Maximilian Emanuel of Württemberg-Winnental
paragraph_text: The Electorate of Baden was a State of the Holy Roman Empire from 1803 to 1806. In 1803, Napoleon bestowed the office of Prince-elector to Charles Frederick. This only lasted until 1806, when Francis II dissolved the Empire. When the Holy Roman Empire dissolved, Baden achieved sovereignty, and Charles Frederick became Grand Duke.
title: Electorate of Baden
paragraph_text: Prince FrederickLouis Charles of Prussia (; Potsdam, 5 November 1773 – Berlin, 28 December 1796) was the second son and third child of Frederick William II of Prussia and Frederika Louisa of Hesse-Darmstadt.
title: Prince Louis Charles of Prussia
paragraph_text: Charles Frederick II of Württemberg-Oels (7 February 1690 in Merseburg – 14 December 1761 in Oleśnica) was a Duke of Oels-Württemberg and Regent of the Duchy of Württemberg.
title: Charles Frederick II, Duke of Württemberg-Oels
paragraph_text: Frederick Baltimore Calvert (1793 – 21 April 1877) was an English actor and lecturer on elocution, the son of Charles Calvert, steward of the Duke of Norfolk.
title: Frederick Baltimore Calvert
paragraph_text: The Sixth Crusade started in 1228 as an attempt to regain Jerusalem. It began seven years after the failure of the Fifth Crusade and involved very little actual fighting. The diplomatic maneuvering of the Holy Roman Emperor and King of Sicily, Frederick II, resulted in the Kingdom of Jerusalem regaining some control over Jerusalem for much of the ensuing fifteen years (1229–39, 1241–44) as well as over other areas of the Holy Land.
title: Sixth Crusade
paragraph_text: Princess Margaret of Prussia (Margarete Beatrice Feodora; 22 April 1872 – 22 January 1954) was a daughter of Frederick III, German Emperor and Victoria, Princess Royal, and the younger sister of Emperor Wilhelm II and a granddaughter of Queen Victoria. She married Prince Frederick Charles of Hesse, the elected King of Finland, making her the would-be Queen of Finland had he not decided to reject the throne. In 1926 they assumed the titles of Landgrave and Landgravine of Hesse. She lost three sons in World Wars I and II.
title: Princess Margaret of Prussia
paragraph_text: Margaret of the Palatinate (German: "Margarete von der Pfalz"; 1376 – 26 August 1434, Einville-au-Jard) was the daughter of Rupert of Germany and his wife Elisabeth of Nuremberg. She married Charles II, Duke of Lorraine on 6 February 1393. Her maternal grandparents were Frederick V, Burgrave of Nuremberg and Elisabeth of Meissen. One of her grandchildren was Margaret of Anjou, Queen Consort of King Henry VI of England.
title: Margaret of the Palatinate
paragraph_text: Charles VIII expelled Alfonso II of Naples from Naples in 1495, but was soon forced to withdraw due to the support of Ferdinand II of Aragon for his cousin, Alfonso II's son Ferrantino. Ferrantino was restored to the throne, but died in 1496, and was succeeded by his uncle, Frederick IV.
title: Kingdom of Naples
paragraph_text: Henry Frederick of Württemberg-Winnental (16 October 1687 in Stuttgart – 27 September 1734 in Winnental) was a German general. He was the son of Frederick Charles, Duke of Württemberg-Winnental and Margravine Eleonore Juliane of Brandenburg-Ansbach.
title: Henry Frederick of Württemberg-Winnental

Reasoning steps:
Charles Frederick II >> place of birth >>>> Merseburg
What year did Merseburg end? >>>> 1738

Answer: spans: 1738