Given a passage and a question, find the answer to the question based on the passage. The answer should consist of only one word that lies in the span of only one of the sentences in the passage.
Q: Paragraph: Castellanos is a Spanish habitational surname with the meaning `` ( from a place founded or inhabited by ) Castilians '' . Notable people with the surname include :
Question: where does the last name castellanos originate from

A: 
Spanish