, bezitter van Ter Specke, baljuw van Noordwijk en rentmeester van Teijlingen. Jacob werd 26-1-1457 Leids poorter, met Jan van Leyden als borg. Maakte deel uit van de ridderschap en edelen door wie Karel de Stoute 21 juli 1468 werd ingehuldigd
When copying data from this family tree, please include a reference to the origin: J. Post, "Ancestors J. Post", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-j-post/I4460.php : accessed January 25, 2026), "Jacob Dirksz (-< 1477)".
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