Career
She was called "The Queen of Tiveden". This was illegal, as according to the law the mother had sole custody until the children reached the age of three. They were placed first in the court of Princess Cecilia of Sweden, then that of Princess Elizabeth of Sweden (1564), and finally that of queen Karin Månsdotter.
In 1595, she was further granted Bocksjö Manor in Tiveden in Västergötland, where she chose to reside.
As a widow after 1610, she mainly lived at Odenfors Manor outside Vreta. Like her father, Eric XIV, Constantia was described as mentally fragile.
In the Undenäs church, a moonstone belonging to Constantia is still kept. Issue:
Carl Frankelin (d 1631), major, fell at Greifswald when occupied under the Treaty of Stettin.
Johan Frankelin
Maria Catharina Frankelin (d 1661), married to governor and nobleman Anders Koskull (1594-1676)
Elisabet Frankelin (d 1655), married to Christian Frost (d 1631).