He was the father of Royal Noble Consort Suk and the maternal grandfather of King Yeongjo of Joseon.
[1] His father Choe Tae-il (최태일) held no official position, but posthumously, he was appointed to the positions of Sukjongdaebu (숭정대부; Grand Chancellor), Uijeongbu Jwachanseong (의정부좌찬성; State Councilor), concurrently positions of Panuigeumbusa (판의금부사; Inspector General of the Treasury), and was posthumously promoted again to the positions of Daegwangbo Sukrokdaebu (대광보국숭록대부; Grand Chancellor), Uijeongbu Uiejeong (의정부우의정; State Councilor), concurrently serving as Yeonggyeongyeon (영경연; Inspector General) and Chunchugwansa (춘추관사; Royal Secretariat).
During his lifetime, Choe Hyo-won served as the General of the Vanguard (선략장군 (宣略將軍), acting Deputy Chief Officer of the Loyal Martial Guard.
After his death, his grandson, King Yeongjo, posthumously promoted him the position of Daewangbo (대광보국숭록대부; Grand Chancellor), Sukrokdaebu (숙록대부; State Councilor), concurrently holding the positions of Yeonguijeong (영의정; Chief State Councillor), Yeonggyeongyeon (영경연; Inspector General), and Hongmungwan (홍문관; Royal Secretariat) on February 18, 1734.
[2] His burial site is located at 85th spot in Jin Gwan-dong, Eunpyeong District, Seoul.