The Hometown of Prince Siddhartha. The Capital of the Ancient Sakya Kingdom. The Ancient Kapilavastu or the present day Kapilavastu district of Nepal is situated on the foothills of the Siwalik range and is 29km west of Lumbini. The kingdom is believed to have received its name from the great sage Kapila, who practiced penance here and suggested the exiled prince and princesses of Kosala kingdom to settle at present day Tilaurakot. Later, these royal offspring of Kosala kingdom were known as the Sakyas and their kingdom as Kapilavastu. Prince Siddhartha spent his early 29 years of worldly life as a prince here in the Ancient Kapilavastu.