Romanian Liga I and Cupa României winners

Notes

•  1: Olympia Bucureşti were formed in October 1904, winning the first two Romanian championships. In 1915 Olympia Bucureşti split, with some players joining Colentina Bucureşti. After WWII the club regrouped and played under the name Olympia-Rheim, but were dissolved in 1946.
•  2: United Ploieşti were formed in 1909, winning one Romanian championship in 1912. The club was largely made up of foreign players, consequently prior to WWI, the foreign players left the country. The remaining players joined Româno-Americană and Prahova Ploieşti, who both went on to win championships. The club was dissolved in 1914.
•  3: Colentina Bucureşti were formed in April 1909, they won two Romanian championships. Prior to the outbreak of WWI the English players leave the country, which harms the future of the team. At this time players from Olympia Bucureşti join the club, which keeps Olympia Bucureşti running for one more season. The club was dissolved in 1947.
•  4: Româno-Americană were formed in 1906, as Societatea Româno-Americană. They won the championship in 1915 and were dissolved when Romania joined WWI in 1916.
•  5: Prahova Ploieşti were formed in 1911, from the renants of dissolved team United Ploieşti. They won the championship in 1916. After WWII the team goes through a number of name changes. In 1950 it becomes Partizanul, then between 1951 & 1955 Flacăra, Metalul in 1956, Energia in 1957 and then back to Prahova in 1958. This name they keep until 1984 when a minor name change to Prahova CSU occurs. In 1999 the club merges with a police club and changes name to Argus Prahova. Shortly after, the club moves to Urlaţi, it was dissolved in 2000.
•  6: Venus Bucureşti were formed in 1915. They were the most successful club in Romania prior to WWII, winning 8 championships. In 1948 the communist regime ruled that all sport associations must join with a governmental institution, so they merged with UCB (Uzinele Comunale Bucureşti) to become Venus-UCB. The union was short lived and the team dissolved in 1949.
•  7: Chinezul Timişoara were formed in 1910. They had a very successful winning 6 consecutive championships between 1922 & 1927. The next season they had a financial crisis, when their president left to form Ripensia Timişoara. Although surviving the crisis in August 1936 they merged with ILSA Timişoara. After WWII they merged again with CAM Timişoara, initially calling themselves Chinezul CAM Timişoara and in 1946 changing to CAM Timişoara. Shortly afterwards they were dissolved.
•  8: Colţea Braşov were formed in 1920. It won the Romanian Championships in 1928. The club was dissolved in 1931, its place being taken in Braşovia by Braşovia Braşov.
•  9: Juventus Bucureşti were formed in 1924 from the merger of Triumf Bucureşti and Romcomit Bucureşti. Between 1946 & 1952 Juventus changed their name five times (Distributia, Competrol, Petrolul, Partizanul & then Flacăra). In 1952 the team was dissolved and all of its players were moved to Ploieşti forming Petrolul Ploieşti.
• 10: UD Reşiţa were formed in 1926. They changed name to Metalochimic Reşiţa in the 1948/49 season. Then changed their name frequently in the next 60 years. In order the names were, 1949–56: Metalul Reşiţa, 1956/57: Energia Reşiţa, 1957–75: CSM Reşiţa, 1975–82: FCM Reşiţa, 1982-2005: CSM Reşiţa & 2005–08 FCM Reşiţa (couldn't quite make their minds up with the last two!). The club was dissolved in 2008 for financial reasons, but reformed as Şcolar Reşiţa in 2009.

Research

I've cross referenced as much as possible and added links to the new club website where possible. Many thanks goes to the RSSSF Archive, which was an invaluable source of information whenever an insolvable fact was needed. If you need to find a football answer, it will be on there somewhere.