The Diet of Pressburg passes laws ending serfdom and establishing parliamentary rule. Louis Battyany becomes head of government in Hungary. On March 15th Pius IV grants a constitution for the Papal States. On March 18th there is an uprising in Berlin. On March 21 he proclaims himself head of a united Germany and promises to summon a Constituent Assembly.
Austrian troops are withdrawn from Venice and a Republic of Venice is proclaimed.
Fighting in the streets of Milan breaks out and after five days Austrian troops are removed from there too. On March 24 Charles Albert declares war on Austria. Also on March 24 the Provisional Government of the Duchies of Schleswig-Holstein announced their intention of joining a united Germany. On March 31 the pre-Parliament at Frankfurt begins deliberations. April Elections take place in France result in a fairly right wing Assembly.