In April 1567, Tycho returned home from his travels, with a firm intention of becoming an astrologer. Although he had been expected to go into politics and the law, like most of his kinsmen, and although Denmark was still at war with Sweden, his family supported his decision to dedicate himself to the sciences. His father wanted him to take up law, but Tycho was allowed to travel to Rostock and then to Augsburg (where he built a great quadrant), Basel, and Freiburg. In 1568, he was appointed a canon at the Cathedral of Roskilde, a largely honorary position that would allow him to focus on his studies. At the end of 1570, he was informed of his father's ill health, so he returned to Knutstorp Castle, where his father died on 9 May 1571. The war was over, and the Danish lords soon returned to prosperity. Soon, another uncle, Steen Bille, helped him build an observatory and alchemical laboratory at Herrevad Abbey. Tycho was acknowledged by King Frederick II who proposed to him that an observatory be built to better study the night sky. After accepting this proposal, the location for the Uraniborg's construction took place at a remote island called Hven in the Sont near Copenhagen, which made a name for itself as the most promising observatory in Europe at the time.