Article snapshot taken from Wikipedia with creative commons attribution-sharealike license.
Give it a read and then ask your questions in the chat.
We can research this topic together.
The Quarta Catalana is the 10th and last tier of the Spanish football league system and the fifth highest league in the autonomous community of Catalonia. The league was formed in 2011 to replace the Tercera Territorial as third level of Catalonia and was split into 31 groups. Every season, depending on budgets, each group can have from 12 to 18 teams.