His father was Uchizane ICHIJO, naidaijin (minister of the center), and mother was a younger sister of Uchitsune's father Ietsune ICHIJO by a different mother (i.e., Uchizane's aunt).
父は内大臣一条内実、母は内実の父である一条家経の異母妹（すなわち内実の叔母）。