Friederich Heinrich Koyen (b. January 1806, d. date unknown)
Friederich Heinrich Koyen (son of Anton Frederick Koyen and Agathe Louise Wilstrup) was born January 1806, and died date unknown.He married Christina Dorothea Elizabeth Keine in Helenenruhe, Holstein. More About Friederich Heinrich Koyen and Christina Dorothea Elizabeth Keine: Marriage: Helenenruhe, Holstein.