birthhigh confidence
1770-10-20
1 linked sourceBorn 1770-10-20 · Died 1838-08-20
Guillelmus Helsen was born (1770-10-20). Source: Wikidata referenced P569 statement
Guillelmus Helsen died (1838-08-20). Source: Wikidata referenced P570 statement
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1770-10-20
1 linked source1838-08-20
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Accepted in the user-authorized Wikidata CC0 bulk publication run.
Q115824635$E5DF7EF2-B416-4859-9EC2-8CF445BF0DF3; 1 source anchor · Wikidata · P569
Open original sourceQ115824635$69D6F369-75A3-49AF-9DA8-577B576A20BF; 1 source anchor · Wikidata · P570
Open original source