Umako's wife was a sister of MONONOBE no Yumige Omuraji (or MONONOBE no Moriya) according to the "Nihon Shoki," and in "Kishi Kacho" (Lineage of the Kishi Clan) and "Isonokamifuri Jingu Ryakusho" (A Brief History of Isonokamifuri Jingu Shrine: Lineage of the Shinto Priest FURU no Sukune), his wife was MONONOBE no Moriya's sister, 'Futohime,' while in "Sendai Kujihongi" (Ancient Japanese History): Lineage of the Mononobe and Soga Clans, it is written that his wife was MONONOBE no Kamatarihime Otoji (her father was MONONOBE no Moriya's half-brother, ISONOKAMI no Nieko Omuraji, and her mother MONONOBE no Moriya's sister Futohime).
妻は『日本書紀』では物部弓削大連（物部守屋）の妹、『紀氏家牒』・『石上振神宮略抄』神主布留宿禰系譜料では物部守屋妹の「太媛」、『先代旧事本紀』天孫本紀では物部鎌足姫大刀自（父は物部守屋の異母弟石上贄古大連、母は物部守屋同母妹の布都姫）とある。