Complex sentence: Halmay was born in Magasfalu, Kingdom of Hungary (today Vysoká pri Morave, Slovakia) and died in Budapest.Halmay Zoltán, who was a double olympic champion, was the most successful sportsmen of freestyle swimming.
Split into simpler sentences: Halmay was born in Magasfalu, Kingdom of Hungary (today Vysoká pri Morave, Slovakia) and died in Budapest. Zoltán Halmay, who was a double olympic champion, was the most successful sportsmen of freestyle swimming.