The earliest written record of Singapore occurs in a Chinese account from the third century, describing the island of Pu Luo Chung (???). This was itself a transliteration from the Malay name "Pulau Ujong", or "island at the end" (of the Malay peninsula). The quasi-mythological Sejarah Melayu (Malay Annals) contains a tale of a prince of Srivijaya, Sri Tri Buana (also known as Sang Nila Utama), who landed on the island during the 13th century. When he saw a lion, the prince took this as an auspicious sign and founded a settlement called Singapura, which means "Lion City" in Malay. However, it is unlikely there ever were lions in Singapore, though tigers continued to roam the island until the early 20th century.
In 1320, the Mongol Empire sent a trade mission to a place called Long Ya Men (or Dragon's Tooth Strait), which is believed to be Keppel Harbour, at the southern part of the island. The Chinese traveler Wang Dayuan, visiting the island around 1330, described a small settlement called Dan Ma Xi (???, from Malay Tamasik) with Malay and Chinese residents. The Nagarakretagama, a Javanese epic poem written in 1365, also referred to a settlement on the island called Temasek (Sea Town). Recent excavations in Fort Canning found evidence indicating that Singapore was an important port in the 14th century.
In the 1390s, a Palembang prince, Parameswara, fled to Temasek after being deposed by the Majapahit kingdom. During the 14th century, Singapore was caught in the struggle between Siam (now Thailand) and the Java-based Majapahit Empire for control over the Malay Peninsula. According to Sejarah Melayu, Singapore was defeated in one Majapahit attack. He ruled the island for several years, before being forced to Melaka where he founded the Sultanate of Malacca. Singapore became an important trading port of the Malacca Sultanate and later the Sultanate of Johor. In the early 15th century, Singapore was a Thai vassal state, but the Malacca Sultanate which Iskandar had founded quickly extended its authority over the island. After the Portuguese seizure of Malacca in 1511, the Malay admiral fled to Singapura and established a new capital at Johor Lama, keeping a port officer in Singapura. The Portuguese destroyed Johor Lama in 1587. In 1613, Portuguese raiders burnt down the settlement at the mouth of Singapore River and the island sank into obscurity.