Simplify the following text for a Grade 10 native English-speaking person.
Original: As a politician , caricaturist , and writer , he is one of the leading figures of Galician culture and identity .
Simplified: As a politician , caricaturist , painter , and writer , he is one of the leading figures of Galician identity and culture , and one of the main names behind the cultural movement XeraciÃ n NÃ s. He was also one of the founders and president of the Partido Galeguista ( Galicianist Party ) .