Archbishop Margaret Idahosa was born on 29 July, 1943 into a royal family in Benin Kingdom of Edo State, Nigeria. She obtained a Diploma in Home Economics from Leeds Polytechnic in the United Kingdom.

Margaret is a Nigerian preacher, author and the Archbishop of the Church of God Mission International. Mrs Benson is the first African female Archbishop.

She is the wife of the late Archbishop Benson Idahosa. Mrs Idahosa is the Chancellor of Benson Idahosa University. She was conferred with the Officer of the Order of Niger (OON) by the federal government of Nigeria in 2008.

Her matrimonial union with her husband was blessed with 3 sons and 5 daughters.