In 1266 “brann hallin i Biorgyn” (the hall in Biorgyn burned down) the Icelandic annals recount. The building we call Håkonshallen must be one of the “two good stone halls” built on the initiative of king Håkon Håkonsson, identical to the “stone hall” in which the most prominent male guests sat during the wedding and crowning celebrations of the successor to the throne, Magnus, in September 1261. At the crowning of the Håkon himself a long boatshed had to serve as venue. The hall is built on the pattern of European imperial halls, while the details point to English models. Håkon had close contacts with king Edward, who had recently built Westminster Hall.
Alrekstad (later Årstad) is the birthplace of Bergen. The estate was an estate for Harald Hårfagre and several of his descendants: Eirik Blodøks, Håkon den gode og Olav Tryggvason. These first kings moved with their courts and guardsmen from estate to estate. From these estates the king ruled the country.
There is no place in Hordaland where there are so many over-wintering song swans as in Tjeldstømarka. And there are few places in the county that have had this birdfowl as a guest for as long.
Lysekloster was the largest agricultural property in the country when it was phased out during the Reformation in 1537. In its prime this cloister encompassed two-thirds of all the farms in Os. The monks introduced and cultivated new plant species and it was probably they who stocked the waters with fish not indigenous to the area. This legacy from the Middle Ages has left a lasting mark.