Sir Frederick William Richards led a huge shipbuilding and naval works programme under a British Conservative statesman who served as prime minister for over how many years?
Frederick Richards: Admiral of the Fleet Sir Frederick William Richards, {'1': ", '2': ", '3': ", '4': "} (30 November 1833 – 28 September 1912) was a Royal Navy officer. Frederick Richards:  He went on to be First Naval Lord and in that role led a huge shipbuilding and naval works programme undertaken in accordance with the provisions of the Naval Defence Act 1889. Frederick Richards:  The programme continued under the Governments of Lord Rosebery and then Lord Salisbury and Richards remained in office driving the programme throughout the political turmoil. Robert Gascoyne-Cecil, 3rd Marquess of Salisbury: Robert Arthur Talbot Gascoyne-Cecil, 3rd Marquess of Salisbury, {'1': ", '2': ", '3': ", '4': "} (3 February 183022 August 1903), styled Lord Robert Cecil before 1865 and Viscount Cranborne from June 1865 until April 1868, was a British Conservative statesman, serving as prime minister three times for a total of over 13 years.
13