When the land ice retreated north from Stockholm, the whole of Bromma was still under water.

Southern Bromma first rose out of the sea, followed by the northern part which became a rich agricultural area from about year 0 to the Viking Age.

[2] During the Viking Age, Bromma had plenty of watercourses and most of Bromma's most important villages and farms during the Viking Age and the Middle Ages (such as Ulvsunda, Linta, Glia, Nora, Riksby and Nockeby) were located by the strait that stretched from the current Ulvsundasjön-Lillsjön-Brommaplan-Judarn.

During the Middle Ages, various Catholic church institutions were the largest land and farm owners in Bromma, such as St. Clare's Priory.

The parochial church council (kyrkorådet) has been the parish board and has had the ongoing responsibility for the administration and execution of decisions.