 Upon their return to Europe, Prince Peter and Ovtchinnikova settled in the United Kingdom, where the Prince resumed his studies at the London School of Economics.He prepared a thesis on polyandry under the mentorship of the ethnologist Sir Raymond Firth, Malinowski's successor, and received a doctorate of Philosophy in 1959.In 1961, he was about to take up a post at the National and Kapodistrian University of Athens, but an intervention from the Palace deprived him of the opportunity.