Mennonites from Groningen » Sources » "De Ommelander Borgen en Steenhuizen" van Wiebe Jannes Formsma, R. A. Luitjens-Dijkveld Stol, A. Pathuis; "Ripperda westelijke borg" van Cor Enter; "Merkwaardige kasteelen in Nederland", Deel 2, van Jacob Lennep; "Het geslacht Ewsum" van dr. M. Hartgerink-Koomans; “Anna van Ewsum. Haar afkomst, haar leven, haar wereld” van Wouter van Schie
Source description
"De Ommelander Borgen en Steenhuizen" van Wiebe Jannes Formsma, R. A. Luitjens-Dijkveld Stol, A. Pathuis; "Ripperda westelijke borg" van Cor Enter; "Merkwaardige kasteelen in Nederland", Deel 2, van Jacob Lennep; "Het geslacht Ewsum" van dr. M. Hartgerink-Koomans; “Anna van Ewsum. Haar afkomst, haar leven, haar wereld” van Wouter van Schie
Information from this source
Information about a fact regarding Hidde Tamminga (until after July 14, 1431)
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