The Liberal League was a grouping within the British Liberal Party from 1902 until 1910, with Lord Rosebery as its president and H. H. Asquith, Edward Grey and Henry Fowler as its vice-presidents. It consisted largely of Liberal Imperialists and its purpose was to give unity to those Liberals who disliked the policies of the Liberal leader, Sir Henry Campbell-Bannerman. A Liberal League candidate won the 1902 Leeds North by-election, turning a Unionist majority of over 2,500 into a Liberal majority of nearly 800.