Information: - Czechoslovakia or Czecho-Slovakia (Czech and , "esko-Slovensko") was a sovereign state in Central Europe that existed from October 1918, when it declared its independence from the Austro-Hungarian Empire, until its peaceful dissolution into the Czech Republic and Slovakia on 1 January 1993. - Daniel Rygel ( born 16 November 1979 ) is a Czech former football midfielder , who played 12 matches in the Gambrinus liga for Bohemians Prague . He is the son of footballer Zdenk Rygel . - Zdenk Rygel (born 1 March 1951 in Ostrava) is a former football player from Czechoslovakia. He was a member of the national team that won the gold medal at the 1980 Summer Olympics in Moscow. Rygel obtained a total number of four caps for his native country, between 1974-04-27 and 1975-06-07. - Ostrava (or "Mahrisch Ostrau") is a city in the north-east of the Czech Republic and is the capital of the Moravian-Silesian Region. It is 15km from the border with Poland, at the meeting point of four rivers: the Odra, Opava, Ostravice and Luina. In terms of both population and area Ostrava is the third largest city in the Czech Republic, the second largest city in Moravia, and the largest city in Czech Silesia; it straddles the border of the two historic provinces of Moravia and Silesia. The population is currently around 300,000 (Data from 2013). The wider conurbation which also includes the towns of Bohumin, Doubrava, Haviov, Karvina, Orlova, Petvald and Rychvald is home to around 500,000 people, making it the largest urban area in the Czech Republic apart from the capital, Prague. - Amidfielder is an association football position. Midfielders are generally positioned on the field between their team's defenders and forwards. Some midfielders play a disciplined defensive role, breaking up attacks, and are otherwise known as defensive midfielders. Others blur the boundaries, being more mobile and efficient in passing: they are commonly referred to as deep-lying midfielders, play-makers, box-to-box, or holding midfielders. The number of midfielders on a team and their assigned roles depends on the team's formation; the collective group of these players on the field is sometimes referred to as the midfield. - The 1980 Summer Olympics, officially known as the Games of the XXII Olympiad, was an international multi-sport event held in Moscow, Soviet Union, in present-day Russia. - Moscow (or ) is the capital and most populous city of Russia, with 12.2 million residents within the city limits and 16.8 million within the urban area. Moscow has the status of a Russian federal city. What is the relationship between 'daniel rygel' and 'czechoslovakia'?
place of birth