For
Prussia:
- Otto von Bismarck (obviously)
http://en.wikipedia.org/wiki/Otto_von_Bismarck
- Friedrich Ebert, First Chancellor of the Weimar Republic from the end of WW1 until his death
http://en.wikipedia.org/wiki/Friedrich_Ebert "pivotal figure in the German Revolution", well-known and honored in Germany until today
- Konrad Adenauer first post-war Chancellor after WW2
http://en.wikipedia.org/wiki/Konrad_Adenauer
- Helmut Kohl, helped the development of the EU and the re-union of the 2 German states, longest tenure as chancellor
http://en.wikipedia.org/wiki/Helmut_Kohl
- Richard von Weizsäcker
http://en.wikipedia.org/wiki/Richard_von_Weizsäcker Elder Statesman, President, helped uniting Germany after 1989
- Theodor Heuss
http://en.wikipedia.org/wiki/Theodor_Heuss besides being first president after WW2 also was heavily involved in shaping the German constitution
For
France
- François Mitterand
http://en.wikipedia.org/wiki/François_Mitterrand besides being longest-serving president of France was also pivotal for the development of the European Union
- Charles Maurice de Taleyrand-Périgord, "one of the most skilled diplomats in European history", name has become a synonym for crafty diplomacy (worked for Napoleon amongst others)
http://en.wikipedia.org/wiki/Charles_Maurice_de_Talleyrand-Périgord
- Jean-Baptiste Colbert
http://en.wikipedia.org/wiki/Jean-Baptiste_Colbert
improved the French economy under Louis XIV, expanded the French colonial empire
- Emmanuel Joseph Sieyès aka Abbé Sieyès
http://en.wikipedia.org/wiki/Emmanuel_Joseph_Sieyès "one of the chief political theorists of the French Revolution", "significant contributions to social sciences"
- Maximilien de Robespierre
http://en.wikipedia.org/wiki/Maximilien_de_Robespierre - one of the best-known and most influential statesmen during the French Revolution
- William I, Duke of Aquitaine (this one could also be a Great Prophet)
http://en.wikipedia.org/wiki/William_I,_Duke_of_Aquitaine - founder of Cluny Abbey the most important political and religious centre in France at the time, responsible for many reforms concerning monasteries&clergy
- Hugh Capet
http://en.wikipedia.org/wiki/Hugh_Capet first person to be elected as "King of the Franks" after the Carolingian rulers.
- Louis IX aka Saint Louis
http://en.wikipedia.org/wiki/Louis_IX_of_France or
http://en.wikipedia.org/wiki/History_of_France#Saint_Louis_.281226.E2.80.931270.29 reformer, responsible for the centralization of French government & administration
For
Spain:
- Francisco de Vitoria
http://en.wikipedia.org/wiki/Francisco_de_Vitoria - founder of the philosophical school of Salamanca, considered founder of the theory of international law
- José de Galvéz
http://en.wikipedia.org/wiki/José_de_Gálvez lawyer, colonial offical, prime figure behind the Bourbon Reforms
- José Moñino
http://en.wikipedia.org/wiki/José_Moñino,_1st_Count_of_Floridablanca "he was arguably Spain's most effective statesman in the eighteenth century."
- Francisco Jiménez de Cisneros
http://en.wikipedia.org/wiki/Francisco_Jiménez_de_Cisneros influential reformer under Ferdinand II and Isabella
- Juan Prim
http://www.britannica.com/EBchecked/topic/476033/Juan-Prim (for once better than wikipedia) military and political leader during the revolution of 1868
For
Portugal:
- Afonso Costa
http://en.wikipedia.org/wiki/Afonso_Costa one of the major figures of the Portuguese First Republic
- António de Oliveira Salazar
http://en.wikipedia.org/wiki/António_de_Oliveira_Salazar rightwin-leader of Portugal from 1932 to 1968
- Sebastião José de Carvalho e Melo
http://en.wikipedia.org/wiki/Sebastião_José_de_Carvalho_e_Melo,_1st_Marquis_of_Pombal 18th-century statesman, introduced many fundamental reforms
- Henrique de Avis
http://en.wikipedia.org/wiki/Henry_the_Navigator - main initiator of the "Age of Discoveries"
For the
Dutch/Netherlands:
- Johan van Oldenbarnevelt
http://en.wikipedia.org/wiki/Johan_van_Oldenbarnevelt - statesman/lawyer important for the independence of the Netherlands from Spain
- Andries Bicker
http://en.wikipedia.org/wiki/Andries_Bicker aimed to end the 80yrs war, controlled Amsterdams politics with his family
- Cornelis de Graeff
http://en.wikipedia.org/wiki/Cornelis_de_Graeff (Successor to Andries) most prominent member of his family, powerful regent
- Johan de Witt
http://en.wikipedia.org/wiki/Johan_de_Witt#As_the_first_Statesman_of_the_Dutch_Republic <- the link pretty much says it
- Desiderius Erasmus aka Erasmus of Rotterdam
http://en.wikipedia.org/wiki/Desiderius_Erasmus (probably more of a Great Priest but a point could be made for either category, I think)
- Hugo Grotius
http://en.wikipedia.org/wiki/Hugo_Grotius co-founder of int. law with Vitoria (see Spain)
- Jacob Cats
http://en.wikipedia.org/wiki/Jacob_Cats famous diplomat, politican and humorist
For
England
- Thomas Becket
http://en.wikipedia.org/wiki/Thomas_Becket fought over rights of the church with the crown in 12th century
- Simon de Montfort
http://en.wikipedia.org/wiki/Simon_de_Montfort,_6th_Earl_of_Leicester rebelled against Henry III and called the first parliament.
- Oliver Cromwell
http://en.wikipedia.org/wiki/Oliver_Cromwell
- Robert Walpole
http://en.wikipedia.org/wiki/Robert_Walpole regarded as first prime minister of England, laid out modern colonial policies
- William Pitt (and his son William Pitt)
http://en.wikipedia.org/wiki/William_Pitt,_1st_Earl_of_Chatham
- Margaret Thatcher
http://en.wikipedia.org/wiki/Margaret_Thatcher
(bolded because also mentioned in the female GP thread)
- Thomas de Littleton
http://en.wikipedia.org/wiki/Thomas_de_Littleton lawyer whose works were used as textbooks for over 3 centuries
- William Blackstone
http://en.wikipedia.org/wiki/William_Blackstone strongly influenced the development of jurisprudence in the UK and US
- Jeremy Bentham
http://en.wikipedia.org/wiki/Jeremy_Bentham jurist and social reformer, founder of modern Utilitarism