Per Ditlev-Simonsen
 Per Ditlev-Simonsen (born 12 June 1932) is a Norwegian politician. He was the mayor of Oslo representing the Conservative Party from 1995 to 2007. He stepped down on 23 August 2007 following the Swiss bank-account scandal.Ditlev-Simonsen was an officer of the The Norwegian Royal Guards and he later attended Stanford University getting a Master of Arts degree. After college Ditlev-Simonsen became a partner in his father's shipping company Sverre Ditlev-Simonsen & Co (SDS) in 1955.