Boris Johnson’s father (from Wikipedia):
Stanley Patrick Johnson (born 18 August 1940) is a British author[3] and former Conservative Party politician who served as Member of the European Parliament (MEP) for Wight and Hampshire East from 1979 to 1984. A former employee of the World Bank and the European Commission, he has written books on environmental and population issues. His six children include Prime Minister Boris Johnson; former MP and minister Jo Johnson; and journalist Rachel Johnson.
Thank you - derp upbringing.