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
John Craig (physician) John Napier of Merchiston the hint which led to his discovery of logarithms. Anthony à Wood states that This story may not be independently verifiable. Napier himself informed Tycho Brahe, via Craig, of his discovery, some twenty years before it was made public. John Craig (physician) John Craig M.D. (died 1620) was a Scottish physician, known also as an astronomer. He was physician to James VI of Scotland, and accompanied him to England. He also corresponded with Tycho Brahe, and associated with John Napier. He was born in Scotland, the son of an Edinburgh tailor and merchant Robert Craig and