May Hnin Thwe-Da (; , ; also spelled "မည်နှင်းသွယ်ဒါ", "Mi Hnin Thwe-Da"; , , "Lady Soidao") was the chief queen consort of King Wareru of Martaban. The queen was a daughter of King Ram Khamhaeng of Sukhothai. Circa 1281/82, while her father the king was away on a campaign, Princess Thwe-Da eloped with Wareru, a captain of the royal palace guards.Pan Hla 2005: 19 The couple fled to Wareru's native Tagaw Wun village (present-day Bilin Township, Mon State in Myanmar), then part of the neighboring Bagan Kingdom.Pan Hla 2005: 20
Her husband later seized the local governorship of Martaban (Mottama).Pan Hla 2005: 21, 23 Thwe-Da became the chief queen consort of Martaban in 1287 when her husband officially revolted against Bagan with her father's support.Pan Hla 2005: 24–25 The rebellion was successful, and her husband went on to consolidate all three Mon-speaking regions of Lower Burma in the 1290s.Pan Hla 2005: 33–34
Thwe-Da and Wareru had at least one daughter, May Hnin Theindya, who later became a wife of Tarabya of Pegu.Pan Hla 2005: 30
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