Question:
Which position did Panagiotis Kanellopoulos hold in Jan, 1981?

Context:
 Panagiotis Kanellopoulos holds the position of Member of the Athens Academy from Jan, 1959 to Jan, 1959. 
 Panagiotis Kanellopoulos holds the position of Prime Minister of Greece from Apr, 1967 to Apr, 1967. 
 Panagiotis Kanellopoulos holds the position of Minister of Aviation of Greece from Feb, 1947 to Aug, 1947. 
 Panagiotis Kanellopoulos holds the position of Minister without portfolio of Greece from Apr, 1946 to Apr, 1946. 
 Panagiotis Kanellopoulos holds the position of Deputy Prime Minister of Greece from Nov, 1961 to Jun, 1963. 
 Panagiotis Kanellopoulos holds the position of Minister of Military Affairs of Greece from Mar, 1950 to Apr, 1950. 
 Panagiotis Kanellopoulos holds the position of Minister of Economy of Greece from Dec, 1944 to Jan, 1945. 
 Panagiotis Kanellopoulos holds the position of Member of the Hellenic Parliament from Jan, 1974 to Jan, 1985. 
 Panagiotis Kanellopoulos holds the position of Minister of Commercial Marine of Greece from Jul, 1944 to Oct, 1944. 
 Panagiotis Kanellopoulos holds the position of Minister of Naval Affairs of Greece from Jan, 1947 to Feb, 1947. 
 Panagiotis Kanellopoulos holds the position of Minister for National Defence of Greece from Dec, 1952 to Jun, 1955. 
 Panagiotis Kanellopoulos holds the position of Minister of Public Order from Jan, 1947 to Feb, 1947.

Answer:
Member of the Hellenic Parliament