Complex sentence: Shilparatna explains him with only one wife called Prabha and their eight years old lad known as Satyakan though his appearance with two wives is the widespread iconography in his South Indian temples.
Split into simpler sentences: Shilparatna explains him with only one wife called Prabha and their eight years old lad known as Satyakan. But his appearance with his two wives is the common iconography in his South Indian temples.