Question: What was the family of Joachim II, former elector of the town where the Nuthe river is located?

full_context: Document 1: Nashwaak River: The Nashwaak River, located in west-central New Brunswick, Canada, is a tributary of the Saint John River. It is 113 kilometres long. The river rises from Nashwaak Lake (southeast of the village of Juniper) and flows south and east through uninhabited land and rapids to the village of Stanley. From Stanley, the Nashwaak flows southeast to Nashwaak Bridge and Taymouth, then south the through several rural communities such as Durham Bridge, the historic town of Nashwaak Village and Penniac before it reaches the town of Marysville. It flows into the Saint John River opposite downtown Fredericton.
Document 2: Prince Johann Georg of Hohenzollern: Prince Johann Georg was the sixth child of Frederick, Prince of Hohenzollern (Heiligendamm 30 August 1891 – Krauchenwies 6 February 1965) and his wife Princess Margarete Karola of Saxony (Dresden 24 January 1900 – Freiburg im Breisgau 16 October 1962).
Document 3: East Prussia: The Administrator of Prussia, the grandmaster of the Teutonic Order Maximilian III, son of emperor Maximilian II died in 1618. When Maximilian died, Albert's line died out, and the Duchy of Prussia passed to the Electors of Brandenburg, forming Brandenburg-Prussia. Taking advantage of the Swedish invasion of Poland in 1655, and instead of fulfilling his vassal's duties towards the Polish Kingdom, by joining forces with the Swedes and subsequent treaties of Wehlau, Labiau, and Oliva, Elector and Duke Frederick William succeeded in revoking king of Poland's sovereignty over the Duchy of Prussia in 1660. The absolutist elector also subdued the noble estates of Prussia.
Document 4: Huguenots: Frederick William, Elector of Brandenburg, invited Huguenots to settle in his realms, and a number of their descendants rose to positions of prominence in Prussia. Several prominent German military, cultural, and political figures were ethnic Huguenot, including poet Theodor Fontane, General Hermann von François, the hero of the First World War Battle of Tannenberg, Luftwaffe General and fighter ace Adolf Galland, Luftwaffe flying ace Hans-Joachim Marseille, and famed U-boat captain Lothar von Arnauld de la Perière. The last Prime Minister of the (East) German Democratic Republic, Lothar de Maizière, is also a descendant of a Huguenot family, as is the German Federal Minister of the Interior, Thomas de Maizière.
Document 5: Joachim II Hector, Elector of Brandenburg: Joachim II ( or "Hektor"; 13 January 1505 – 3 January 1571) was a Prince-elector of the Margraviate of Brandenburg (1535–1571), the sixth member of the House of Hohenzollern. Joachim II was the eldest son of Joachim I Nestor, Elector of Brandenburg and his wife Elizabeth of Denmark, Norway, and Sweden. He received the cognomen Hector after the Trojan prince and warrior for his qualities and prowess.
Document 6: Albert Wolfgang, Count of Hohenlohe-Langenburg: He was head of the House of Hohenlohe-Langenburg and introduced primogeniture in Langenburg in 1699. This meant the oldest son would inherit the entire county, and younger sons would only inherit if the oldest were to die childless. From then on, younger sons would mostly embark on military careers, for example, in the imperial army, or in friendly nations.
Document 7: East Prussia: Although Brandenburg was a part of the Holy Roman Empire, the Prussian lands were not within the Holy Roman Empire and were with the administration by the Teutonic Order grandmasters under jurisdiction of the Emperor. In return for supporting Emperor Leopold I in the War of the Spanish Succession, Elector Frederick III was allowed to crown himself "King in Prussia" in 1701. The new kingdom ruled by the Hohenzollern dynasty became known as the Kingdom of Prussia. The designation "Kingdom of Prussia" was gradually applied to the various lands of Brandenburg-Prussia. To differentiate from the larger entity, the former Duchy of Prussia became known as Altpreußen ("Old Prussia"), the province of Prussia, or "East Prussia".
Document 8: Nuthe: The Nuthe is a river in Brandenburg, Germany, left tributary of the Havel. Its total length is . The Nuthe originates in the Fläming region, near Niedergörsdorf. It flows north through Jüterbog, Luckenwalde, Trebbin and Saarmund. The Nuthe joins the Havel in central Potsdam.
Document 9: Alte Schlaube: Alte Schlaube is a river of Brandenburg, Germany. It is the former lower course of the Schlaube. It discharges into the "Brieskower See", which is connected to the Oder, near Brieskow-Finkenheerd.
Document 10: Thuringia: The most important river in Thuringia is the Saale (a tributary of the Elbe) with its tributaries Unstrut, Ilm and Weiße Elster, draining the most parts of Thuringia and the Werra (the headwater of the Weser), draining the south-west and west of the Land. Furthermore, some small parts on the southern border are drained by tributaries of the Main (a tributary of the Rhine). There are no large natural lakes in Thuringia, but it does have some of Germany's biggest dams including the Bleiloch Dam and the Hohenwarte Dam at Saale river same as the Leibis-Lichte Dam and the Goldisthal Pumped Storage Station within the Highland. Thuringia is Germany's only state without connection to navigable waterways.
Document 11: Hamburg: Hamburg is at a sheltered natural harbour on the southern fanning-out of the Jutland Peninsula, between Continental Europe to the south and Scandinavia to the north, with the North Sea to the west and the Baltic Sea to the northeast. It is on the River Elbe at its confluence with the Alster and Bille. The city centre is around the Binnenalster ("Inner Alster") and Außenalster ("Outer Alster"), both formed by damming the River Alster to create lakes. The islands of Neuwerk, Scharhörn, and Nigehörn, away in the Hamburg Wadden Sea National Park, are also part of the city of Hamburg.
Document 12: Joachim, 6th Prince Murat: Joachim Murat, 6th Prince Murat (Paris, Île-de-France, France, August 6, 1885 – Paris, Île-de-France, France May 11, 1938), was a member of the Bonaparte-Murat family.
Document 13: Finow: Finow is a river of Brandenburg, Germany. Originally, it flowed into the Oder near Oderberg, but since the creation of the Finow Canal in the 17th century, it flows into this canal near Finowfurt.
Document 14: Plane (river): The Plane is a river in Brandenburg, Germany, left tributary of the Havel. Its total length is . The Plane originates in the High Fläming Nature Park, near Rabenstein. It flows north through Planetal and Golzow. The Plane joins the Havel in the Breitlingsee lake west of Brandenburg an der Havel.
Document 15: Natzschung: The Natzschung () is a river in Bohemia (Czech Republic) and Saxony (Germany). It is a left tributary of the Flöha, which it joins in Olbernhau. For much of its length it forms the border between Czech Republic and Germany.
ground_truth: House of Hohenzollern
sub_queries: Nuthe >> located in the administrative territorial entity Answer: Brandenburg
Joachim II Hector, Elector of Brandenburg >> family Answer: House of Hohenzollern