Bouwsteen en Toetssteen: Een overweging van de bronnen en methoden van de genealogie gecentreerd rond het Gelderse geslacht De Cock

Henri Jean Joseph Vermeulen

    Research output: ThesisThesis fully internal (DIV)

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    Initially the thesis Bouwsteen en Toetssteen (Building Block and Touch Stone) has been based on research into the extensive genealogy of five branches of the Dutch family De Cock. This family played an important role in the Tieler- and Bommelerwaarden in the era between 1250-1500 AD. Despite the fact that during the construction of this genealogy many different types of sources of information had been used, my research suggested that the power of genealogy could be essentially improved by broadening its methodology in enlarging its very foundation. Therefore this thesis not only focuses on traditional primary sources but also on developing and testing a new fundamental element, i.e. using methods, which reflect stable and commonly accepted behavioral rules and conventions followed by families in their environment in the late middle ages. The extra element addresses explo-ration and exploitation of topics like testimonials, kinships naming, armorial uses and hierarchies. It also supports the break free of genealogic value by extracting not only information from patrilinear family relationships but also from matrilinear ones. Moreover it was expected that using a sources & methods based research approach could not only be beneficial in the specific case of the family De Cock living in the Tieler- and Bomme-lerwaarden, but also in broader research into genealogies of noble families in the medieval Low Countries. Research confirmed that a number of relevant rules and conventions have been maintained broadly in The Netherlands during the late middle ages: the issuer of a charter and the guarantors mentioned in it were relatives, children were named according to a fixed set of rules, weapons on seals were designed according to fixed directives and hierarchies were strictly enforced in the charter. Therefore is concluded that using these methods provides a major secondary source of information genealogical research outside the Tieler- and Bommelerwaarden, in a more broad geographical context in The Nether-lands, especially for nobilities of the late middle ages. The thesis has been built on two pillars: on one side genealogy using its primary sources and on the other the set of methods. Both pillars are intertwined by patrilinear and matrilinear kinship research and are con-nected with each other by two bridge sections consisting of geneagrams and pedigrees. This model invites on one hand the historian to delve into the genealogy and to use the results thereof in research into social structures and kinship networks. On the other hand the model invites the genealogist to delve into the described methods via the same two bridge sections. Doing so, he possibly will realise that the fundament of the traditional genealogy has been usefully broadened by now. A clear demonstration of the power of the approach presented in Building Block and Touch Stone is the case Van Randerode. It shows the construction of the genealogy of the family Van Randerode, which was struck by an early extinction and had a poor set of primary sources. Via patrilinear and matrilinear kinship research and especially via the exploitation of relevant testimonials and kinship names a robust genealogy could be reconstructed. In addition the subcase Van Boxtel has delivered a credible foundation to the transfer of the hereditary Van Boxtel goods from the family Van Randerode/Boxtel to the family Van Kuyc/Boxtel.
    Original languageDutch
    QualificationDoctor of Philosophy
    Awarding Institution
    • University of Groningen
    • Boer ,de, Dick, Supervisor
    Award date15-Jun-2020
    Place of Publication[Groningen]
    Publication statusPublished - 2020

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