Question: What is the name of the castle in the birthplace of Karel Stibor?

full_context: Document 1: Jaroslav Drobný: From 1938 to 1949 Drobný played center in the Czechoslovak ice hockey league. He was a Silver medalist with the Czechoslovak ice hockey team in the 1948 Olympics. In the final match, Czechoslovakia and Canada tied goalless but Canada won the gold medal due to a better overall goal average. Drobný scored 9 goals in 8 games at the Olympics. Jaroslav Drobný was also a member of the Czechoslovak national ice hockey team which won the gold medals at the 1947 World Ice Hockey Championships in Prague. He scored 15 goals in 7 games in the tournament including a hat-trick in the decisive victory over USA which gave his country its first ever World Championships title. In 1997, Drobný was inducted in the International Ice Hockey Federation (IIHF) Hall of Fame.
Document 2: Clam-Gallas Palace: The Clam-Gallas Palace () is a Baroque palace in Prague, the capital of the Czech Republic. The building is situated on the corner of Husova Street and Mariánské Square, in Prague Old Town. The palace was first designed by the imperial court architect Johann Bernhard Fischer von Erlach, from Vienna. It was built in 1714–18 by the Italian architect Domenico Canevale. During the rest of the 18th century, Jewish balls and concerts were held in the palace, and were attended by noteworthy artists including Mozart and Beethoven.
Document 3: Miloš Zeman: Miloš Zeman (; born 28 September 1944) is a Czech politician serving as the third and current President of the Czech Republic since 8 March 2013. He previously served as Prime Minister of the Czech Republic from 1998 to 2002. As Leader of the Czech Social Democratic Party during the 1990s, he transformed his party into one of the country's major political forces. Zeman was Speaker of the Chamber of Deputies, the lower house of the Czech parliament, from 1996 until he became Prime Minister two years later in 1998.
Document 4: Karolína Grohová: Grohová competed at the 2014 Winter Olympics for the Czech Republic. She placed 38th in the qualifying round in the sprint, failing to advance to the knockout stages. She also competed with Eva Vrabcová-Nývltová, Petra Nováková and Klára Moravcová in the relay, finishing 10th.
Document 5: Cubism: The leading Cubist architects were Pavel Janák, Josef Gočár, Vlastislav Hofman, Emil Králíček and Josef Chochol. They worked mostly in Prague but also in other Bohemian towns. The best-known Cubist building is the House of the Black Madonna in the Old Town of Prague built in 1912 by Josef Gočár with the only Cubist café in the world, Grand Café Orient. Vlastislav Hofman built the entrance pavilions of Ďáblice Cemetery in 1912–1914, Josef Chochol designed several residential houses under Vyšehrad. A Cubist streetlamp has also been preserved near the Wenceslas Square, designed by Emil Králíček in 1912, who also built the Diamond House in the New Town of Prague around 1913.
Document 6: Prague Castle: Prague Castle General information Architectural style Baroque and Mannerism Location 119 08 Prague 1, Czech Republic Current tenants Miloš Zeman, President of the Czech Republic and the First Lady Construction started 870; 1148 years ago (870) Completed 1929; 89 years ago (1929) Design and construction Architect Matthias of Arras and Peter Parler Website www.hrad.cz
Document 7: Tomáš Jablonský: Previously a left midfielder, Slavia coach Karel Jarolím moved him into defence in 2008. In June 2009, Jablonský was transferred, along with Jan Kovařík, to Jablonec in a deal that sent Adam Hloušek to Slavia Prague.
Document 8: Gregor Stähli: Gregor Stähli (born 28 February 1968 in Zürich) is a Swiss skeleton racer who has competed since 1989. He won two bronze Winter Olympic medals in the men's skeleton, earning them in 2002 and 2006.
Document 9: Embassy of France, Prague: The Embassy of France to the Czech Republic is located on Velkopřevorské náměstí, in Malá Strana, Prague, next to Vltava's island Kampa. It occupies the large baroque Buquoy Palace (1719). The ground floor of the Embassy was flooded during the August 2002 floods.
Document 10: Karel Stibor: Karel Stibor (5 November 1923 in Prague, Czechoslovakia – 8 November 1948 in La Manche) was an ice hockey player for the Czechoslovakian national team. He won a silver medal at the 1948 Winter Olympics.
Document 11: Vyšehrad: Vyšehrad (Czech for "upper castle") is a historic fort located in the city of Prague, Czech Republic, just over 3 km southeast of Prague Castle, on the right bank of the Vltava River. It was built probably in the 10th century. Situated within the fort is the Basilica of St. Peter and St. Paul, as well as the Vyšehrad Cemetery, containing the remains of many famous people from Czech history, among them Antonín Dvořák, Bedřich Smetana, Karel Čapek, and Alphonse Mucha. It also contains Prague's oldest Rotunda of St. Martin from the 11th century.
Document 12: Jan Kubiš: Jan Kubiš (24 June 1913 – 18 June 1942) was a Czech soldier, one of a team of Czechoslovak British-trained paratroopers sent to eliminate acting Reichsprotektor (Reich-Protector) of Bohemia and Moravia, SS-Obergruppenführer Reinhard Heydrich, in 1942 as part of Operation Anthropoid.
Document 13: President of the Czech Republic: President of the Czech Republic Prezident České republiky Presidential Standard Incumbent Miloš Zeman since 8 March 2013 Style His Excellency Residence Prague Castle Seat Prague, Czech Republic Appointer Popular vote Term length Five years Renewable once, consecutively Inaugural holder Václav Havel 2 February 1993 Formation Constitution of the Czech Republic Salary 2,235,600 Kč ($86,830) Website www.hrad.cz
Document 14: Arnold Kadlec: Arnold Kadlec (born January 8, 1959 in Most, Czechoslovakia) is a retired Czechoslovak ice hockey player. He played for the Czechoslovakian team in the 1980 and 1984 Winter Olympics, winning a silver medal in 1984.
Document 15: Eduard Stehlík: He graduated from the Faculty of Philosophy at Charles University, and has worked at the Institute for Military History since 1989, focusing on Czechoslovak military history. He has also cooperated with Czech television. He was declared an honorary citizen of Lidice on 27 October 2006.
ground_truth: Prague Castle
sub_queries: What is the birthplace of Karel Stibor? Answer: Prague
what is the name of the castle in Prague Answer: Prague Castle