Margaret I of Denmark in the context of "Kalmar Union"

A queen regnant (pl.: queens regnant) is a female monarch, equivalent in rank, title and position to a king. She reigns suo jure (in her own right) over a realm known as a kingdom; as opposed to a queen consort, who is married to a reigning king; or a queen regent, who is the guardian of a child monarch and rules pro tempore in the child's stead or instead of her husband who is absent from the realm, be it de jure in sharing power or de facto in ruling alone. A queen regnant is sometimes called a woman king. A princess, duchess, or grand duchess regnant is a female monarch who reigns suo jure over a principality or (grand) duchy; an empress regnant is a female monarch who reigns suo jure over an empire.

A queen regnant possesses all the powers, such as they may be, of the monarchy, whereas a queen consort or queen regent shares her spouse's or child's rank and titles but does not share the sovereignty of her spouse or child. The husband of a queen regnant traditionally does not share the queen regnant’s rank, title, or sovereignty and usually holds a lower princely title. However, the concept of a king consort is not unheard of in both contemporary and historical periods.

Sorø (Danish pronunciation: [ˈsoːˌʁœˀ]) is a town in Sorø municipality on the island of Zealand in east Denmark with a population of 8,433 (2025). It lies on the northeastern shore of Sorø Lake. The municipal council and the regional council are located in Sorø.

The town was founded in the 12th century by Bishop Absalon, as a Cistercian Abbey. The site also contained Sorø Klosterkirke, the church where Bishop Absalon and Margaret I of Denmark were buried (she was later moved to Roskilde Domkirke). In the 16th century, the Abbey was converted into a school, which became Sorø Academy. Despite the construction of a rail line through the town in the mid-19th century, the academy remained the core of the settlement, and Sorø has limited industry. Today, Sorø is a commuter town, as much of its population works in either greater Copenhagen or Roskilde.

Olaf II of Denmark (December 1370 – 3 August 1387) was King of Denmark as Olaf II (though occasionally referred to as Olaf III) from 1376 and King of Norway as Olav IV from 1380 until his death. Olaf was the son of Queen Margaret I of Denmark and King Haakon VI of Norway, and grandson of kings Magnus IV of Sweden and Valdemar IV of Denmark.