Ànzhào jiāpǔ de jìzǎi, gāozǔfù nà yí bèi cóng Shāndōng bāndào le Dōngběi.
According to the family genealogy, my great-great-grandfather's generation moved from Shandong to the northeast.
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usage
The ladder of forefathers runs 祖父 (grandfather), 曾祖父 (great-grandfather), 高祖父 (great-great-grandfather). The two-character 高祖 means the same but is the formal word of genealogies.