Otte Brahe Otte Brahe Otte Brahe (; 2 October 1518 – 9 May 1571) was a Danish (Scanian) nobleman and statesman, who served on the privy council (Rigsraad, "Council of the Realm"). He was married to Beate Clausdatter Bille and was the father of astronomer Tycho Brahe. Brahe was born in Tosterup to Tyge Brahe and Sophie Rud. He was nephew of Anne Rud and Henrich Krummedige. Brahe married Beate Clausdatter Bille in 1544. Both the Brahes and the Billes were among the most powerful noble families in Denmark during their lives. Both families owned farms, forests, and land as well as
Tycho Brahe "Rudolphine Tables". Also at the court in Prague was the mathematician Nicolaus Reimers (Ursus), with whom Tycho had previously corresponded, and who, like Tycho, had developed a geo-heliocentric planetary model, which Tycho considered to have been plagiarized from his own. Kepler had previously spoken highly of Ursus, but now found himself in the problematic position of being employed by Tycho and having to defend his employer against Ursus' accusations, even though he disagreed with both of their planetary models. In 1600, he finished the tract "Apologia pro Tychone contra Ursum" (defense of Tycho against Ursus). Kepler had great respect for