The 12th-century chronicler Kalhana characterizes Lalitaditya as a world conqueror, crediting him with extensive conquests and miraculous powers in his "Rajatarangini". According to Kalhana, Lalitaditya defeated the central Indian king Yashovarman, and then marched to eastern and southern parts of India. He subjugated several more rulers on his way back to Kashmir, and then subdued several northern kings. Based on a reconstruction of Kalhana's account, art historian Hermann Goetz (1969) theorized that Lalitaditya managed to create a short-lived empire that included major parts of India as well as present-day Afghanistan and Central Asia. Goetz' analysis was accepted and cited widely by subsequent authors writing on the history of Kashmir. However, Kalhana's account is not supported by the records of Lalitaditya's neighbouring rulers; for example, the Tang dynasty chronicles present him as a vassal of the Tang emperor. As a result, several other scholars have dismissed Kalhana's account as legendary exaggeration.