Robert Gordon Menzies, later Sir Robert, was Australia's longest-serving prime minister, leading the party that he founded, the Liberal Party into Government, from 1949 to 1966 winning seven successful elections in a row.
More than this, he had been prime minister from 1939-41 though less successfully, but from which he learnt much about governing, people and himself.
Menzies also has the distinction of being one of few Australian prime ministers who retired while still firmly in office at a .