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Sonnenberg is a quarter in the district 3 of Winterthur.
It was formerly a part of Seen municipality, which was incorporated into Winterthur in 1922.
References
Sonnenberg (Winterthur) Wikipedia(Text) CC BY-SA
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Sonnenberg is a quarter in the district 3 of Winterthur.
It was formerly a part of Seen municipality, which was incorporated into Winterthur in 1922.