Casa Pia AC Casa Pia AC is one of the most unusual clubs in Portuguese football, its name and identity permanently intertwined with the history of Casa Pia — the venerable Lisbon institution that has cared for children and young people since the 18th century. Although the club's official founding date is 3 July 1920, its roots stretch back much further: as early as 1893, a team known as Real Casa Pia de Lisboa was formed from wards of the institution, and in 1898 that same side defeated the supposedly unbeatable Carcavelos Club, in a match regarded as one of the foundational moments of Portuguese football.
The club's significance in the early years of the Portuguese game is underlined by the fact that when Portugal played its first ever international match against Spain on 18 December 1921, four players in the squad came from Casa Pia, and the national team's captain was club product Cândido de Oliveira — a figure whose name is still carried by one of Portugal's football trophies today.
After that period of prominence, the club vanished from the top level for decades, playing just a single season in the elite division during the 20th century, in 1938-39. Its return to the summit stands as one of the most remarkable achievements in modern Portuguese football: only in the 2021-22 season, after an 83-year absence, did Casa Pia earn promotion to the Primeira Liga, finishing as runners-up in the second division. Because the club's Estádio Pina Manique does not meet top-flight requirements, the team has played its home matches at another venue since its return to the elite.
The side, nicknamed Os Gansos (The Geese), proved in its first seasons back among the elite that it could compete with the country's best sides, recording victories over clubs such as Sporting CP. Casa Pia's story remains a unique example of an institution combining a social mission with more than a century of sporting tradition.