Treaty of Trianon
Region Main ethnicity Others
Transylvania and parts of Partium , Banat ( Romania ) 2,831,222 Romanians ( 53.8% ) . The 1919 and 1920 Transylvanian censuses indicate a greater percentage of Romanians ( 57.1% / 57.3% ) 2,431,273 others ( mostly Hungarians - 1,662,948 ( 31.6% ) and Germans - 563,087 ( 10.7% ) ) . The 1919 and 1920 Transylvanian censuses indicate a smaller Hungarian minority ( 26.5% / 25.5% )
Upper Hungary ( restricted to the territory of today 's Slovakia ) 1,687,977 Slovaks [ according to the 1921 census : 1,941,942 Slovaks ] 1,233,454 others ( mostly Hungarians - 886,044 , Germans , Ruthenians and Roma ) [ according to the 1921 census : 1,058,928 of others ]
Croatia-Slavonia , Délvidék ( today in Croatia , Serbia ) 2,756,000 Croats and Serbs 1,366,000 others ( mostly Hungarians and Germans )
Kárpátalja ( Ukraine ) 330,010 Ruthenians 275,932 others ( mostly Hungarians , Germans , Romanians , and Slovaks )
Őrvidék ( Burgenland , Austria ) 217,072 Germans 69,858 others ( mainly Croatian and Hungarian )
Results and consequences -- 1910 census
The number of non-Hungarian and Hungarian communities in the different areas based on the census data of 1910 ( in this , people were not directly asked about their ethnicity , but about their native language ) . The present day location of each area is given in parenthesis . Region Main spoken language Hungarian language Other languages Transylvania and parts of Partium , Banat ( Romania ) Romanian – 2,819,467 ( 54% ) 1,658,045 ( 31.7% ) German – 550,964 ( 10.5% ) Upper Hungary ( restricted to the territory of today 's Slovakia ) Slovak – 1,688,413 ( 57.9% ) 881,320 ( 30.2% ) German – 198,405 ( 6.8% ) Délvidék ( Vojvodina , Serbia ) Serbo-Croatian – 601,770 ( 39.8% ) * Serbian – 510,754 ( 33.8% ) * Croatian , Bunjevac and Šokac – 91,016 ( 6% ) 425,672 ( 28.1% ) German – 324,017 ( 21.4% ) Kárpátalja ( Ukraine ) Ruthenian – 330,010 ( 54.5% ) 185,433 ( 30.6% ) German – 64,257 ( 10.6% ) Kingdom of Croatia-Slavonia and Muraköz and part of Baranya ( Croatia ) Croatian - 1,638,350 ( 62.3% ) 121,000 ( 3.5% ) Serbian - 644,955 ( 24.6% ) German – 134,078 ( 5.1% ) Fiume ( Croatia ) Italian – 24,212 ( 48.6% ) 6,493 ( 13% ) Croatian and Serbian – 13,351 ( 26.8% ) Slovene - 2,336 ( 4.7% ) German - 2,315 ( 4.6% ) Őrvidék ( Burgenland , Austria ) German – 217,072 ( 74.4% ) 26,225 ( 9% ) Croatian – 43,633 ( 15% ) Muravidék ( Prekmurje , Slovenia ) Slovene – 74,199 ( 80.4% ) – in 1921 14,065 ( 15.2% ) – in 1921 German – 2,540 ( 2.8% ) – in 1921
The Treaty of Trianon () was the peace agreement of 1920 that formally ended World War I between most of the Allies of World War I and the Kingdom of Hungary, the latter being one of the successor states to Austria-Hungary. The treaty regulated the status of an independent Hungarian state and defined its borders. It left Hungary as a landlocked state that covered , only 28% of the that had constituted the pre-war Kingdom of Hungary (the Hungarian half of the Austro-Hungarian monarchy). Its population was 7.6 million, only 36% of the pre-war kingdom's population of 20.9 million. The areas that were allocated to neighbouring countries in total (and each of them separately) had a majority of non-Hungarians but 31% of Hungarians (3.3 million) were left outside of post-Trianon Hungary. Five of the pre-war kingdom's ten largest cities were drawn into other countries. The treaty limited Hungary's army to 35,000 officers and men, and the Austro-Hungarian Navy ceased to exist. The principal beneficiaries of the territorial division of pre-war Kingdom of Hungary were the Kingdom of Romania, the Czechoslovak Republic, the Kingdom of Serbs, Croats and Slovenes (later Yugoslavia), and the First Austrian Republic. One of the main elements of the treaty was the doctrine of self-determination of peoples, and it was an attempt to give the non-Hungarians their own national states. In addition, Hungary had to pay war reparations to its neighbours. The treaty was dictated by the Allies rather than negotiated, and the Hungarians had no option but to accept its terms. The Hungarian delegation signed the treaty under protest on 4 June 1920 at the Grand Trianon Palace in Versailles, France.