Sophia Brahe Sophia Brahe Sophia or Sophie Brahe or after marriage Sophie Thott Lange (22 September 1556 or 24 August 1559 – 1643), was a Danish horticulturalist with knowledge of astronomy, chemistry, and medicine. She assisted her brother Tycho Brahe with his astronomical observations. She was born in Knudstrup, as the youngest of ten children, to Otte Brahe "rigsråd," or advisor to the King of Denmark; and Beate Bille Brahe, leader of the royal household for Queen Sophie. Sophia's oldest brother was astronomer Tycho Brahe. Though he was both more than a decade her senior and raised in a separate household, the
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