Marc Maria Frans , Viscount Eyskens ( born 29 April 1933 ) , known as Mark Eyskens , is a Belgian economist and politician in the Christian People 's Party ( Belgium ) , now called Christian Democratic and Flemish , and briefly served as Prime Minister of Belgium in 1981 .
Marc Maria Frans , Viscount Eyskens ( born 29 April 1933 ) , known as Mark Eyskens ] , is a Belgian economist and politician in the Christian People 's Party ( Belgium ) . He briefly served as Prime Minister of Belgium for eight months in 1981 .