Mandala (political model) in the context of "Funan"

The Ayutthaya Kingdom or the Empire of Ayutthaya was a Thai kingdom that existed in Southeast Asia from 1351 to 1767, centered around the city of Ayutthaya, in Siam, or present-day Thailand. European travellers in the early 16th century called Ayutthaya one of the three great powers of Asia (alongside Vijayanagara and China), although the Chinese chronicles recognise the kingdom as one of its tributary states. The Ayutthaya Kingdom is considered to be the precursor of modern Thailand, and its developments are an important part of the history of Thailand.

The name Ayutthaya originates from Ayodhya, a Sanskrit word. This connection stems from the Ramakien, Thailand's national epic. The Ayutthaya Kingdom emerged from the mandala or merger of three maritime city-states on the Lower Chao Phraya Valley in the late 13th and 14th centuries (Lopburi, Suphanburi, and Ayutthaya). The early kingdom was a maritime confederation, oriented to post-Srivijaya Maritime Southeast Asia, conducting raids and tribute from these maritime states. After two centuries of political organization from the Northern Cities and a transition to a hinterland state, Ayutthaya centralized and became one of the great powers of Asia. From 1569 to 1584, Ayutthaya was a vassal state of Toungoo Burma; but quickly regained independence. In the seventeenth and eighteenth centuries, Ayutthaya emerged as an entrepôt of international trade and its cultures flourished. The reign of Narai (r. 1657–1688) was known for Persian and later, European, influence and the sending of the 1686 Siamese embassy to the French court of King Louis XIV. The Late Ayutthaya Period saw the departure of the French and English but growing prominence of the Chinese. The period was described as a "golden age" of Siamese culture and saw the rise in Chinese trade and the introduction of capitalism into Siam, a development that would continue to expand in the centuries following the fall of Ayutthaya.

Nusantara is the Indonesian name of Maritime Southeast Asia (or parts of it). It is an Old Javanese term that literally means "outer islands". In Indonesia, it is generally taken to mean the Indonesian Archipelago. Outside of Indonesia, the term has been adopted to refer to the Malay Archipelago.

The word Nusantara is taken from an oath by Gajah Mada in 1336, as written in the Old Javanese Pararaton. Gajah Mada was a powerful military leader and prime minister of Majapahit credited with bringing the empire to its peak of glory. Gajah Mada delivered an oath called Sumpah Palapa, in which he vowed not to eat any food containing spices until he had conquered all of Nusantara under the glory of Majapahit.The concept of Nusantara as a unified region was not invented by Gajah Mada in 1336. The term Nusantara was first used by Kertanegara of Singhasari in Mula Malurung inscription dated 1255. Furthermore, in 1275, the term Cakravala Mandala Dvipantara was used by him to describe the aspiration of united Southeast Asian archipelago under Singhasari and marked the beginning of his efforts to achieve it. Dvipantara is a Sanskrit word for the "islands in between", making it a synonym to Nusantara as both dvipa and nusa mean "island". Kertanegara envisioned the union of Southeast Asian maritime kingdoms and polities under Singhasari as a bulwark against the rise of the expansionist Mongol-led Yuan dynasty of China.

The Sukhothai Kingdom was a post-classical Siamese kingdom (maṇḍala) in Mainland Southeast Asia surrounding the ancient capital city of Sukhothai in present-day north-central Thailand. It evolved from a trading hub to a city-state in 1127 and emerged into the kingdom by Si Inthrathit in 1238. Sukhothai existed as an independent polity until 1438 when it fell under the influence of the neighboring Ayutthaya after the death of Borommapan (Maha Thammaracha IV).

Sukhothai was originally a trade center in Lavo—itself under the suzerainty of the Khmer Empire from 946–1052—when Central Thai people led by Pho Khun Bang Klang Hao, a local leader, revolted and gained their independence. Bang Klang Hao took the regnal name of Si Inthrathit and became the first monarch of the Phra Ruang dynasty.

Cebu, also called Sugbu, informally referred to as the Rajahnate of Cebu, was an Indianized mandala (polity) monarchy on the island of Cebu in the Philippines prior to the arrival of the Spanish conquistadors. It is known in ancient Chinese records as the nation of Sokbu (束務) (Hokkien) or Suwu (Mandarin). According to Visayan oral legend, it was founded by Sri Lumay or Rajamuda Lumaya, a half-Malay and half-Tamil from Sumatra. The capital of Cebu was Singhapala which is Tamil-Sanskrit for "Lion City", the same root words with the modern city-state of Singapore.

The Thonburi Kingdom was a major Siamese kingdom which existed in Southeast Asia from 1767 to 1782, centred on the city of Thonburi, in Siam or present-day Thailand. The kingdom was founded by Taksin, who reunited Siam following the collapse of the Ayutthaya Kingdom, which saw the country separate into five warring regional states. The Thonburi Kingdom oversaw the rapid reunification and reestablishment of Siam as a preeminient military power within mainland Southeast Asia, overseeing the country's expansion to its greatest territorial extent up to that point in its history, incorporating Lan Na, the Laotian kingdoms (Luang Phrabang, Vientiane, Champasak), and Cambodia under the Siamese sphere of influence.

The Thonburi Kingdom saw the consolidation and continued growth of Chinese trade from Qing China, a continuation from the late Ayutthaya period (1688-1767), and the increased influence of the Chinese community in Siam, with Taksin and later monarchs sharing close connections and close family ties with the Sino-Siamese community.

The Rattanakosin Kingdom, also known as the Kingdom of Siam after 1855, refers to the Siamese kingdom (in modern-day Thailand) between 1782 and 1932. It was founded in 1782 with the establishment of Rattanakosin (Bangkok), which replaced the city of Thonburi as the capital of Siam. This article covers the period until the Siamese revolution of 1932.

The kingdom governed based on the mandala system. This allows for high-autonomy locally with the kingdom influencing and effectively ruling its area of suzerainty. At its zenith in 1805 to 1812, the Kingdom was composed of 25 polities, ranging from duchies and principalities to federations and kingdoms. With the furthest extent reaching the Shan States, southern Yunnan, Laos, Cambodia, northern Si Rat Malai and Kawthoung. The kingdom was founded by Rama I of the Chakri dynasty. The first half of this period was characterized by the consolidation of Siamese power in the center of Mainland Southeast Asia and was punctuated by contests and wars for regional supremacy with rival powers Burma and Vietnam. The second period was one of engagements with the colonial powers of Britain and France in which Siam remained the only Southeast Asian state to maintain its independence.

The old Pahang kingdom (Malay: Kerajaan Pahang Tua) was a historical Malay polity centred in the Pahang region on the east coast of the Malay Peninsula. The polity appeared in foreign records from as early as the 5th century and at its height, covered much of modern state of Pahang and the entire southern part of the peninsula. Throughout its pre-Melakan history, Pahang was established as a mueang or naksat of some major regional Malayic mandalas including Langkasuka, Srivijaya and Ligor. Around the middle of the 15th century, it was brought into the orbit of Melaka Sultanate and subsequently established as a vassal Muslim Sultanate in 1470, following the coronation of the grandson of the former Maharaja as the first Sultan of Pahang.