King Mayadunne (c. 1511–1581) stands as one of the most consequential figures in Sri Lanka's late medieval history. As the ruler of the Sitawaka Kingdom — a realm centred in what is today the Sabaragamuwa and Western Province hinterland — he spent much of his reign pushing back against Portuguese encroachment on the island, a campaign that shaped the political geography of Sri Lanka for generations.
Who was King Mayadunne?
Mayadunne was a son of King Vijayabahu VII of Kotte and a younger brother of Bhuvanekabahu VII, who ruled the dominant Kingdom of Kotte. Where Bhuvanekabahu pursued a policy of accommodation with the Portuguese — even sending an embassy to Lisbon and allowing the Portuguese to act as kingmakers — Mayadunne took an openly hostile stance toward the colonial presence. After establishing his own independent kingdom at Sitawaka around 1521, he spent the next six decades waging near-continuous warfare against both the Portuguese and the rival Kotte court.
His political judgement was sharp. Mayadunne formed alliances with the Zamorin of Calicut and other Indian rulers who shared an interest in limiting Portuguese power in the Indian Ocean region. These alliances gave Sitawaka a strategic depth that pure military strength alone could not have provided.
What was the Sitawaka Kingdom?
Sitawaka was one of three successor states that emerged from the fragmentation of the once-powerful Kingdom of Kotte in the early sixteenth century. Its territory covered a well-watered interior, rich in cinnamon forests and agricultural land, giving Mayadunne an economic base to fund prolonged military campaigns. The kingdom's highland position also made it difficult for Portuguese naval power — formidable on the coast — to project force inland effectively.
Mayadunne capitalised on this geography consistently. He raided the lowlands, isolated Portuguese-aligned settlements, and kept the colonial forces perpetually on the defensive. By the middle of the sixteenth century, Sitawaka had grown powerful enough to threaten even the fortified Portuguese positions around Colombo.
How did Mayadunne resist Portuguese colonisation?
The king's resistance was both military and diplomatic. On the battlefield, his forces repeatedly defeated or harassed Portuguese garrisons along the coast and in the low country. He is recorded to have laid siege to Colombo on more than one occasion, at times coming close to capturing the city entirely. These campaigns tied down substantial Portuguese resources and prevented the consolidation of colonial rule over the island's interior.
Diplomatically, Mayadunne was equally active. He maintained correspondence with Muslim traders and Indian rulers, leveraging anti-Portuguese sentiment across the Indian Ocean world. His ability to sustain this multi-front resistance for over half a century is remarkable by any measure of sixteenth-century statecraft.
The kingdom's control over cinnamon — then among the most valuable spices in the world — gave Mayadunne a trade commodity that European and Asian powers alike coveted. Understanding the economic dimension of his resistance helps explain why he was able to fund armies and sustain alliances over such a prolonged period. Ceylon's spice trade had long attracted foreign interest, and cinnamon from Sitawaka's forests was central to that story.
What was Mayadunne's relationship with the Kingdom of Kandy?
The Kingdom of Kandy, another interior successor state, was a natural potential ally against the Portuguese. Relations between Sitawaka and Kandy fluctuated, however, moving between cooperation and rivalry depending on the immediate political context. Mayadunne was pragmatic: when shared interests aligned, he sought alliances; when they diverged, he was prepared to act against Kandyan interests as well. This complexity is a reminder that anti-Portuguese resistance was rarely a unified or ideologically coherent movement — it was driven by dynastic ambition as much as by any notion of national defence.
What was Mayadunne's legacy?
Mayadunne died around 1581 and was succeeded by his son Rajasinha I, who proved an even more aggressive military commander and briefly came close to expelling the Portuguese from Colombo entirely. Much of the strategic groundwork that enabled Rajasinha I's campaigns was laid by his father over six decades of patient, persistent resistance.
In the longer arc of Sri Lankan history, Mayadunne represents the first sustained and successful example of organised indigenous resistance to European colonialism on the island. He never achieved the final goal of expelling the Portuguese, but he prevented them from consolidating control over the interior and forced them to negotiate and adapt in ways they had not anticipated when they first arrived in 1505. His reign is studied as a case study in asymmetric warfare and small-state survival against a technologically and navally superior power.
The cultural memory of Mayadunne in Sri Lanka tends to emphasise his patriotic resistance rather than the dynastic manoeuvring that also characterised his reign. He is remembered as a king who refused to submit, and that reputation has given him a durable place in Sri Lankan historical consciousness.
Where can travellers explore the history connected to Mayadunne?
The heartland of the Sitawaka Kingdom lies in the area around Avissawella, roughly 50 kilometres east of Colombo. Archaeological and historical sites associated with the Sitawaka period can be found in this region, though they are less developed for tourism than the more prominent heritage sites of the Cultural Triangle in the north-central province. Visitors with a serious interest in Sri Lankan medieval history often combine a visit to Sitawaka-area sites with a broader itinerary that includes Sigiriya and other significant historical landmarks.
For context on the broader sweep of Sri Lankan history — from ancient hydraulic kingdoms through the colonial period — the National Museum in Colombo holds collections that illuminate the Sitawaka era and Mayadunne's place within it.
