Short answers, pulled from the story.
Tyge Ottesen Brahe entered the world on the 14th of December 1546 at Knutstorp Castle, an ancestral seat located north of Svalöv in then Danish Scania. He was the oldest of twelve siblings born to Otte Brahe and Beate Bille.
On the 29th of December 1566 at age twenty Tycho lost part of his nose in a sword duel with third cousin Manderup Parsberg. Modern analysis revealed the prosthesis he wore for the rest of his life was actually brass despite initial reports claiming it was silver and gold.
Tycho suddenly contracted bladder kidney ailment after attending banquet Prague dying eleven days later the 24th of October 1601 age fifty-four. Investigations concluded that mercury poisoning was impossible and likely attributed death to burst bladder prostatic hypertrophy acute prostatitis prostate cancer leading urinary retention overflow incontinence uremia.
King Frederick II offered Tycho the island of Hven in Øresund along with funding to establish an observatory in 1576. The island lay between Zealand and Scania provinces and was then administratively part of Denmark though it became Swedish territory after the Peace of Roskilde in 1658.
On the 11th of November 1572 Tycho observed from Herrevad Abbey a very bright star now numbered SN 1572 unexpectedly appearing in constellation Cassiopeia. It shone brighter than any known star or planet yet Aristotelian belief held celestial realms beyond Moon orbit eternally unchangeable.