Background
Van Lennep was born in Amsterdam as a son of Louis Henri van Lennep and Catharina Hildegonda Enschede.
Van Lennep was born in Amsterdam as a son of Louis Henri van Lennep and Catharina Hildegonda Enschede.
He studied law from 1932 to 1937 at the Municipal University of Amsterdam.
From 1951 to 1969 he was treasurer general, which is the highest official rank of the Dutch Ministry of Finance. From 1969 to 1984 he was secretary general of the Organisation for Economic Company-operation and Development (Organization of European Cooperation and Development). Van Lennep was instrumental in making the Organization of European Cooperation and Development a more effective forum for international cooperation.
After his career at the Organization of European Cooperation and Development he was appointed to be Minister of State from 1986 until his death in 1996.
The results of the review were issued in 1989 as the Report of a Panel on the Role of the Asian Development Bank in the 1990s. Van Lennep died in 1996 at the age of 81 years.
In the 1970s he was named several times to be a candidate for a function in the government of the Netherlands, but he did not have political aspirations. In 1987 he was appointed one of the members of a distinguished external panel to conduct a review of the Asian Development Bank.