Her father was Herman George of Limburg-Bronkhorst, Lord of Styrum, Wisch, and Borculo, and her mother was Countess Mary of Hoya-Bruchhausen.
Agnes entered the convent in Elten at a young age and became provost in Vreden in 1596.
It contains a reference to Agnes: Agnes, by the grace of God abbess of Vreden, Freckenhorst and Borghorst, Countess of Limburg and Bronckhors, had made this ornament in honor of Christ's suffering and donated it to the Church of St. Felicitas in the year of our Lord 1619.
[1] During the later part of her life, the Thirty Years' War ravaged the country.
She had family ties in both the Protestant and the Catholic camps; this enabled her to prevent several raids in the area.