Mater Dei School (abbreviated MD; Thai: มาแตร์เดอีวิทยาลัย; RTGS: Matae De-i Witthayalai) is a private Catholic school in Bangkok, Thailand. The school is run by the Sisters of the Ursuline Order who founded the school in 1928. "Mater Dei" is a Latin phrase which means "Mother of God". In 1925, the Ursuline Sisters of the Roman Union sent four of their European sisters to carry out educational works in Thailand at the invitation of Archbishop Rene Perros, head of the Catholic mission in Siam. In 1926, Sister Marie Bernard Mancel, the second superior of the Ursuline Order in Thailand, decided to purchase a piece of land of about 18 rai (just under 3 hectares) with a large house. The house was removed, and Mater Dei was built on the land. It became the only educational institution on Ploenchit Road. More information...
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