Reinder Bruinsma | 13 March 2024 | I had heard the name of Sister Bertken but knew little about her. That changed when I attended a meeting of the Dutch Society for Church History, where the program was a lecture about Sister Bertken. It was a fascinating story. Sister Bertken was born in 1457 as […] Source: https://atoday.org/the-two-windows-of-sister-bertken/