Harold Sidney Harmsworth, 1st Viscount Rothermere, was a leading British newspaper proprietor who owned Associated Newspapers Ltd. He is best known, like his brother Alfred Harmsworth, later Viscount Northcliffe, for the development of the Daily Mail and the Daily Mirror. Rothermere was a pioneer of popular tabloid journalism, and his descendants continue to control the Daily Mail and General Trust.
- Occupation
- politician, newspaper proprietor
- Position held
- member of the House of Lords
- Citizenship
- United Kingdom, United Kingdom of Great Britain and Ireland
- Born
