Question: Who made a dramatic "Mansion House" speech and was a British Liberal politician?

Context paragraphs:
Agadir Crisis: The Agadir Crisis or Second Moroccan Crisis (also known as the Panthersprung in German) was a brief international crisis sparked by the deployment of a substantial force of French troops in the interior of Morocco in April 1911.  Germany did not object to France's expansion, but wanted territorial compensation for itself.  Berlin threatened warfare, sent a gunboat, and stirred up angry German nationalists.  Negotiations between Berlin and Paris resolved the crisis: France took over Morocco as a protectorate in exchange for territorial concessions to Germany from the French Congo, while Spain was satisfied with a change in its boundary with Morocco.  The British cabinet, however, was alarmed at Germany's aggressiveness toward France.  David Lloyd George made a dramatic "Mansion House" speech that denounced the German move as an intolerable humiliation.  There was talk of war, and Germany backed down.  Relations between Berlin and London remained sour.

Wallace Lawler: Wallace Leslie Lawler (15 March 1912 – 28 September 1972) was a British Liberal politician.  He was elected a Member of Parliament (MP) by gaining Birmingham, Ladywood from Labour at a by-election on 26 June 1969.  However, Lawler only served for one year, as Labour's Doris Fisher regained the seat from him at the 1970 general election.  He was the last Liberal to serve as a Member of Parliament in Birmingham, as Liberal Democrat John Hemming gained Birmingham, Yardley in 2005.

Newton Wallop, 6th Earl of Portsmouth: Newton Wallop, 6th Earl of Portsmouth JP, DL (19 January 1856 - 4 December 1917), styled Viscount Lymington until 1891, was a British Liberal politician but then joined the Liberal Unionist Party in 1886.  He later switched back to the Liberal Party to serve as Under-Secretary of State for War under Sir Henry Campbell-Bannerman from 1905 to 1908.

Edwin Samuel Montagu: Edwin Samuel Montagu PC (6 February 1879 – 15 November 1924) was a British Liberal politician who served as Secretary of State for India between 1917 and 1922.  Montagu was a "radical" Liberal and the third practising Jew (after Herbert Samuel and Rufus Isaacs) to serve in the British cabinet.

Herbert Samuel, 1st Viscount Samuel: Herbert Louis Samuel, 1st Viscount Samuel (6 November 1870 – 5 February 1963), was a British Liberal politician who was the party leader from 1931 to 1935.  He was the first nominally-practising Jew, although a personal atheist, to serve as a Cabinet minister and to become the leader of a major British political party.  Samuel was the last member of the Liberal Party to hold one of the four Great Offices of State.  He also served as a diplomat.

Thomas Keens: Sir Thomas Keens (1870 – 24 November 1953) was a British Liberal later National Liberal politician and accountant.

George Glyn, 2nd Baron Wolverton: George Grenfell Glyn, 2nd Baron Wolverton PC (10 February 1824 – 6 November 1887), was a British Liberal politician.  He held office in three of the Liberal administrations of William Ewart Gladstone.

David Lloyd George: David Lloyd George, 1st Earl Lloyd-George of Dwyfor, {'1': ", '2': ", '3': ", '4': "} (17 January 1863 – 26 March 1945) was a British Liberal politician.  As Chancellor of the Exchequer (1908–1915), Lloyd George was a key figure in the introduction of many reforms which laid the foundations of the modern welfare state.  His most important role came as the highly energetic Prime Minister of the Wartime Coalition Government (1916–22), during and immediately after the First World War.  He was a major player at the Paris Peace Conference of 1919 that reordered Europe after the defeat of the Central Powers.

William Lygon, 7th Earl Beauchamp: William Lygon, 7th Earl Beauchamp (20 February 1872 – 14 November 1938), styled Viscount Elmley until 1891, was a British Liberal politician.  He was Governor of New South Wales between 1899 and 1901, a member of the Liberal administrations of Sir Henry Campbell-Bannerman and H. H. Asquith between 1905 and 1915 and leader of the Liberal Party in the House of Lords between 1924 and 1931.  When political enemies threatened to make public his homosexuality he resigned from office to go into exile.  Lord Beauchamp is often assumed to be the model for the character Lord Marchmain in Evelyn Waugh's novel "Brideshead Revisited".

Arthur Peel, 1st Viscount Peel: Arthur Wellesley Peel, 1st Viscount Peel, {'1': ", '2': ", '3': ", '4': "} (3 August 1829 – 24 October 1912) was a British Liberal politician who sat in the House of Commons from 1865 to 1895.  He was Speaker of the House of Commons from 1884 until 1895 when he was raised to the peerage.

Supporting paragraphs: Agadir Crisis David Lloyd George
Answer: David Lloyd George