Total: 296 representatives
State of Slovenes, Croats and Serbs
Triune Kingdom of Croatia, Slavonia, and Dalmatia (with Rijeka, Međimurje and part of Istria): 62
Slovene lands: 32
Kingdom of Dalmatia: 16
Bosnia and Herzegovina: 42
Kingdom of Serbia
Kingdom of Serbia: 108
Banat, Bačka and Baranja: 24
Kingdom of Montenegro: 12
Ivan Ribar (Democratic Party)
Temporary National Representation Wikipedia
The Temporary National Representation (Croatian: Privremeno narodno predstavništvo), also the Provisional Representation, was the first parliamentary body formed in the newly proclaimed Kingdom of Serbs, Croats and Slovenes. It convened on March 1, 1919. The representatives were selected by the Serbian National Assembly representing the Kingdom of Serbia and the National Council of Slovenes, Croats and Serbs representing the State of Slovenes, Croats and Serbs.
The representation passed the Law on the election of national representatives in the Constitutional Assembly on September 3, 1920. The representation existed until the elections of November 28, 1920.