Real Betis for two years before being officially recognised (in 1909); despite this 1907 remains the official foundation date of the club. Following an internal split from Sevilla FC, another club was formed, Betis Football Club. In 1914, they merged with Sevilla Balompié. The club received its royal patronage in the same year, and therefore adopted the name Real Betis Balompié. Fans continued to refer to the club as "Balompié" and were themselves known as "Los Balompedistas" until the 1930s, when "Betis" and the adjective "Béticos" became common terminology when discussing the club and its followers. Real Betis wear a green and
Real Betis white Kit to honor their most famous manager Paddy O'Connell, who was from Ireland. He led Betis to the division title in 1934 by a single point over Real Madrid. During the Spanish Second Republic (1931–1939), royal patronage of all organisations was nullified, and thus the club was known as Betis Balompié until after the Spanish Civil War when it would revert to the full name. The club reached the Copa del Presidente de la República final for the first time on 21 June 1931, when it lost 3–1 to Athletic Bilbao in Madrid. Betis marked their 25th anniversary year