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I believe that the inclusion of this article in this category is a mistake, as the creation date appears arbitrary and ahistorical. It appears to be based upon a Comes Egilmarus witnessing a charter in which Archbishop Liemar of Bremen confirmed a donation in 1091, but this Egilmar did not hold the title "Count of Oldenburg." Even if we wished to anachronistically call him that, however, he was surely alive before 1091; indeed, Egilmar is mentioned in the Historia Monasterii Rastedensis as filius sororis comitis Hunonis, i.e., son of the sister of one Huno, who according to MedLands[1], "Historia Monasterii Rastedensis names 'Huno comes,' specifies that he held `comitibus Rustringie,' [and] founded the church in Rastede '1059 III Id Sep.'"--Masque (talk) 14:38, 12 February 2019 (UTC)[reply]