The octogenarian died in the early hours of Saturday at the Lagos State University Teaching Hospital, Ikeja.
He was reportedly admitted at the intensive care unit (ICU) of the hospital on Tuesday and remained there until his demise.
A spokesman for the OPC founder who was identified as Adeoye Jolaosho was quoted by a newspaper as saying “It is true, baba died this morning at the ICU in LASUTH, Ikeja.”
He was a medical doctor and hotel owner and was responsible for the recent revival of the Unity Party of Nigeria, a party formed by the late Obafemi Awolowo in the 1970s.
He studied science at Blackburn College and furthered his education at Aberdeen University College of Medicine.
He also studied at the Liverpool Postgraduate School after which he had a Fellowship at the Royal College of Surgeons. In 1976, he studied acupuncture in China under a joint World Health Organization (WHO) and United Nations Development Scholarship Programme.
He was born in 1935.