Complex sentence: Later, Sultan Agung pursued his conquering ambitions in an eastward direction and attacked Blitar, Panarukan and the Blambangan principality in Eastern Java, a vassal of the Balinese kingdom of Gelgel.
Split into simpler sentences: Later, Sultan Agung pursued his conquering ambitions to the east. He attacked Blitar, Panarukan and the Blambangan principality in Eastern Java, a vassal of the Balinese kingdom of Gelgel.