Answer
Peñarol is the second most successful club in Uruguay, after Peñarol/CURCC. This is because Peñarol/CURCC is considered a single club, despite having changed its name several times over the years. Peñarol, on the other hand, is a separate club that was founded in 1913. Peñarol has won 50 Uruguayan Primera División titles, while Peñarol/CURCC has won 51.