Complex sentence: In Bali, a legendary forefather or "stamvader" was called Wau Rauh, a mythical Brahmin high priest of Majapahit who established a five caste system.
Split into simpler sentences: In Bali, a legendary forefather or "stamvader" was called Wau Rauh. He was a mythical Brahmin high priest of Majapahit who established a five caste system.