Karl Dietrich Bracher
Karl Dietrich Bracher (13 March 1922 – 19 September 2016) was a German political scientist and historian of the Weimar Republic and Nazi Germany. Born in Stuttgart, Bracher was awarded a Ph.D. in the classics by the University of Tübingen in 1948 and subsequently studied at Harvard University from 1949 to 1950. During World War II, he served in the Wehrmacht and was captured by the Americans while serving in Tunisia in 1943. He was then held as a POW in Camp Concordia, Kansas. Bracher taught at the Free University of Berlin from 1950 to 1958 and at the University of Bonn since 1959. In 1951 Bracher married Dorothee Schleicher, the niece of Dietrich Bonhoeffer. They had two children.
Tycho Brahe
Tycho Brahe (; born Tyge Ottesen Brahe; 14 December 154624 October 1601) was a Danish nobleman, astronomer, and writer known for his accurate and comprehensive astronomical and planetary observations. He was born in the then Danish peninsula of Scania. Well known in his lifetime as an astronomer, astrologer and alchemist, he has been described as "the first competent mind in modern astronomy to feel ardently the passion for exact empirical facts." His observations were some five times more accurate than the best available observations at the time.