Sophia continued to be a frequent visitor at Uranienborg where she met Erik Lange, a nobleman who studied alchemy and a friend of Tycho's. In 1590, Sophie took 13 visits to Uranienborg and became engaged to Lange. Lange used up most of his fortune with alchemy experiments, so their marriage was delayed some years while he avoided his creditors and traveled to Germany to try to find patrons for his work. Tycho Brahe wrote the Latin epic poem "Urania Titani" during the couple's separation, expressed as a letter from his sister Sophia to her fiancé in 1594. Tycho casts Sophia as Urania, muse of astronomy, a further suggestion of his respect for her scientific endeavours.