Two of her history tutors recognised her academic excellence, encouraged her to apply for
St Hilda's, Oxford, a women-only college, in 1952. She passed the civil service with flying colours, and was asked to enter the diplomatic corps. The Foreign Office mandarins were entirely male during her first posting in London. Hughes was sent to
The Hague. From there she spent three and a half years in
Bangkok, as Second Secretary, during decolonisation and a rising tide of communism in south-east Asia. After another stint in London, this time for five years, she was made First Secretary for the prestigious
Organisation for Economic Co-operation and Development (OECD) in Paris. She was asked in 1975 to take the tough role of negotiator in
East Berlin missions in a divided city during the Cold War détente, having as a visiting fellow to
St Anthony's already established an international reputation. Colleagues apparently recalled her good sense of humour, as absurdist. In an existential world of hardship and political paranoia she remained "cantankerous". During the 1980s she had a three-year posting to
Bonn (
West Germany) speaking several foreign languages. Recalled to London, she served as assistant undersecretary of state at the Foreign Office for two years. ==Oxford University==