When copying data from this family tree, please include a reference to the origin: Andre Ottenhoff, "Family tree Ottenhoff - Schilder", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-ottenhoff/I10456.php : accessed January 6, 2026), "Engeltrude van Frioul di Friuli (± 780-± 857)".
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