Original sentence: It was also common to see for surnames originating from the (Basque Country) to have the form "[patronymic] de [placename]" trying to convert them to the castilian (spanish language), but basque surnames come from the [[Basque country) and Basque language and not from Spanish or Castilian language from Castille
Edited sentence: It was also common to see for surnames originating from the Basque Country to have the form "[patronymic] de [placename]" trying to convert them to the castilian (spanish language), but basque surnames come from the Basque country and Basque language and not from Spanish or Castilian language from Castille