Born on 4 September 1906 in Amsterdam, Netherlands

• Studied law at Amsterdam, 1925-1929
• Advocate at Rotterdam
• Substitute Judge and Judge at the Arrondissement Court at Amsterdam
• Former Professor of Administrative Law at the University of Utrecht
• Counsellor at the Netherlands Supreme Court, 1950
• Member of the Royal Netherlands Academy of Sciences, 1964
• President of the Administrative Law Association
• Appointed as outside arbitrator by the President of the Republic of Lebanon in thedispute between the Lebanon Government and the Beirut Water Company, 1952-53Miscellaneous publications
• Vice-President of the Court from 23 April 1977 to 3 February 1981
• President of the Court from 30 January 1981 to 30 May 1985
• Judge of the European Court of Human Rights from 26 September 1966 to 20 January1986