Caleb’s concubine Ephah was the mother of Haran, Moza, and Gazez. Haran was the father of Gazez.
Jewish Publication Society of America Version (JPS1917) - 1 Chronicles 2:46 >And Ephah, Caleb's concubine, bore Haran, and Moza, and Gazez; and Haran begot Gazez.