Overview
Agda Persdotter (died after 1565) also known as Agda i Porten ('Agda of the Gate'), was the official royal mistress of the future King Eric XIV of Sweden during his time as a Crown Prince in 1558-61, and possibly informally in 1563-65.
Life
The date of her birth and death is unknown. Agda Persdotter was reportedly the daughter of the wealthy merchant and city Councillor Peder Klemetsson, who resided by the gate of St Nicolai in Stockholm and was known as Pher i Porten ('Per of the Gate'), thereby explaining the patronymic as well as the other well known name of Agda: her parentage has, however, not been verified.
Kalmar period
Agda Persdotter was the first known frilla or mistress of Crown Prince Eric. It is not known when and how their relationship was initiated, but it is confirmed that she departed with him from Stockholm as a part of his household when he left for Kalmar in May 1558, and resided with him as his official mistress at Kalmar Castle. She was a center of his court at Kalmar, known as a beauty and given the sobriquet "Caritas" (Latin: Affection, Love). She had her own apartments at Kalmar Castle, where one of her rooms, Agdas kammare ('Agda Chamber') was named after her and her stay there: the room was situated just beside Eric's audience chamber. Eric is not known to have had any other mistress during his time as a crown prince. The couple had two daughters during these years, for whom Eric had horoscopes made at their birth.
It was at that time customary for a Prince to have a mistress, though it was expected of him to dispose of her when he married by providing her with a pension of property or marriage. Consequently, Eric was expected to terminate the relationship with Agda when he was about to depart for England to propose to queen Elizabeth I of England in the autumn of 1560. On 25 August 1560, Agda was awarded the royal estate Eknaholm outside Växjö, which had belonged to a monastery prior to the Swedish Reformation, and which was to be her pension after the departure of Eric to England. She was also arranged to marry Eric's courtier, the nobleman Joakim Eriksson Fleming (1534-1563), brother of Klaus Fleming.
From Wikipedia (CC BY-SA 4.0).