Tycho Brahe personalities. When Tycho and Vedel returned from Leipzig in 1565, Denmark was at war with Sweden, and as vice-admiral of the Danish fleet Jørgen Brahe had become a national hero for having participated in the sinking of the Swedish warship "Mars" during the First battle of Öland (1564). Shortly after Tycho's arrival in Denmark, Jørgen Brahe was defeated in the Action of 4 June 1565, and shortly afterwards died of a fever. Stories have it that he contracted pneumonia after a night of drinking with the Danish King Frederick II when the king fell into the water in a Copenhagen
Tycho Brahe an astronomer at the Imperial court in Prague, whom Tycho accused of having plagiarized his cosmological model. Craig refused to accept Brahe's conclusion that the comet of 1577 had to be located within the aetherial sphere rather than within the atmosphere of Earth. Craig tried to contradict Brahe by using his own observations of the comet, and by questioning his methodology. Brahe published an "apologia" (a defense) of his conclusions, in which he provided additional arguments, as well as condemning Craig's ideas in strong language for being incompetent. Another dispute concerned the mathematician Paul Wittich, who, after staying on Hven