Danish army under Daniel Rantzau beat the Swedish army in the Battle of Axtorna on 20 October. The Swedes fared better at sea. Horn, commanding the Swedish navy, pursued a Danish–Lübeck fleet onto the German coast where most of it was destroyed. After this victory Horn steered for Öresund and levied a toll on passing ships. On 4 June 1565, the Battle at Buchow took place on the Mecklenburg coast, in which the Danish–Lübeck commander Herluf Trolle was mortally wounded. In the Battle of 7 July 1565, the Swedish navy under Horn defeated a Danish–Lübeck navy under Otto Rud near Bornholm, where Sweden captured the Danish flagship the Jegermesther. Thus ensured the command of the eastern Baltic by the Swedes that year. In January 1566 Sweden unsuccessfully laid siege to Bohus Fortress in Bohuslän (then a Norwegian province). Daniel Rantzau then moved his forces into Västergötland. At sea Horn returned to taking toll charges in the Baltic. An indecisive battle at sea outside of Öland occurred on 26 July 1566. On 28 July half the Danish–Lübeck Navy was lost in a storm at sea. Horn was then called to command troops on land, where he died 9 September. North Sweden occupied the undefended Norwegian province of Jemtland, which was quickly reconquered by a counterattack by forces under command of the Norwegian governor of Trøndelag. The forces were unwilling to launch a counterattack on Swedish land. In 1564 the Swedes marched under Claude Collart and re-occupied Jemtland, as well as Herjedalen and Trøndelag, including the city of Trondheim. Initially facing little opposition from the locals, their subsequent ill treatment of the Trøndelag natives, along with tax pressure, laid the groundwork for later resistance to Swedish invasion. Also, Trøndelag was assisted by the governor of Bergenhus, Erik Rosenkrantz, who forced 3500 local peasants to assist him and his 50 professional soldiers. The Swedes saw Bergenhus as their next target. Although the 400 Swedish soldiers were repelled from Trøndelag, Sweden continued to occupy Jämtland and Härjedalen. These provinces were later regained by Denmark–Norway following the peace process in 1570. Sweden also launched attacks towards Eastern Norway. In the south-east Sweden captured Båhus Fortress, but lost it in 1566. Another part of the army marched through the valley Østerdalen in 1567, captured Hamar, and continued towards Oslo. They reached as far as the Skiensfjord, and torched Skien at one point. In Oslo, however, citizens