He served as a minister in the government of Gabon from 1976 to 1990 .
Was President of the National Assembly from 1990 to 1993 ; from 1993 until his death in 2018 .
He served as a minister in the government of Gabon from 1976 to 1990 and was President of the National Assembly from 1990 to 1993 ; from 1993 until his death in 2018 .