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From Rodovid EN

Lineage	周Чжоу
Sex	Male
Full name (at birth)	旦Дань 周Чжоу公Гун 周Чжоу
Parents ♂ ЦзыЧан 文Вэнь王Ван 周Чжоу [周Чжоу]
Wiki-page	wikipedia:ru:Чжоу-гун

From grandparents to grandchildren