Complex sentence: Basiliscus was crowned "caesar", in 476, and was nearly executed in 477 after his father was murdered by Zeno, but was saved by Ariadne, and placed in a monastery.
Split into simpler sentences: Basiliscus was crowned "caesar", in 476. He was almost executed in 477 after his father was murdered by Zeno, but he was saved by Ariadne, who had him placed in a monastery.