Féng Fú 馮黼, paternal great-uncle (bózǔfù 伯祖父) of 馮椅 Féng Yǐ. Per Féng Yǐ’s auto-preface to Hòuzhāi Yì xué (KR1a0046), his name “was famous in the three-academies for this canon [the Yì]” — the immediate family-source of Féng Yǐ’s Yì-scholarship.