Complex sentence: To escape punishment they fled from Aegina to Phthia, where Peleus was purified by Eurytion, king of Phthia, and married Eurytion's daughter, Antigone.
Split into simpler sentences: To escape punishment they fled from Aegina. At Phthia, Peleus was purified by Eurytion, king of Phthia, and married Eurytion's daughter, Antigone.