Is Spanish (Castillian) widely understood in Catalonia? - Quora

Why is Castilian the most popular Spanish language? - Quora

Is Catalan spoken in Aragon? - Quora

Why do many Catalans want to secede from Spain? - Quora

Where is Castilian spoken in Spain? - Quora

Is Catalan or Portuguese more similar to Spanish? - Quora

Can a Spaniard understand the Catalan language? - Quora

Is it true that Catalan is also spoken in Sardinia besides

Which is the closest language to Catalan? - Quora

Is Spain doomed if Catalonia successfully separates from it? - Quora

In Catalonia, which is the most prominent and widely-used language

Sardinian language - Wikipedia

How many people do speak Occitan nowadays? Where are they

How mutually intelligible are Catalan and Valencian? - Quora

Is some Latin American countries in South America such as