These were the children of Pharaoh’s daughter Bithiah. Mered also took a Judean wife, who gave birth to Jered the father of Gedor, Heber the father of Soco, and Jekuthiel the father of Zanoah.
Jewish Publication Society of America Version (JPS1917) - 1 Chronicles 4:18 >and his wife Hajehudijah bore Jered the father of Gedor, and Heber the father of Soco, and Jekuthiel the father of Zanoah — and these are the sons of Bithiah the daughter of Pharaoh whom Mered took.