Complex sentence: However Sunan Prawoto, son of Prince Trenggana and grandson of Raden Patah, stole it and used it to assassinate his uncle Raden Kikin by the river, since then Raden Kikin also refer as Sekar Seda Lepen (flower that fell by the river).
Split into simpler sentences: However Sunan Prawoto, son of Prince Trenggana and grandson of Raden Patah, stole it and used it to assassinate his uncle Raden Kikin by the river. Since then, Raden Kikin is also referred to as Sekar Seda Lepen (flower that fell by the river).