St Mary's Old Church parish church in the Church of England located in Old Town on St Mary's, Isles of Scilly. It was built at Old Town, Isles of Scilly during the 12th century, perhaps around 1130. Re-building was carried out between 1660 and 1667 including the addition of the south aisle, and a west end gallery for soldiers from the Garrison. Further improvements were made in 1743 when the east end was rebuilt.
By the nineteenth century, it was derelict and under the orders of Augustus Smith, Lord Proprietor of the Islands, it was restored.
The churchyard of Old Town church serves as the principal cemetery for the island of St Mary's. Over the centuries countless members of the old Scilly families have been buried here, as have been the crews of numerous ships lost near the Isles. Among them are Sir John Narborough and his brother James, the sons of Rear Admiral Sir John Narborough, who both died in the sinking of HMS Association in 1707. Also buried here is Ann Cargill (1760–1784), an 18th-century opera diva and celebrated beauty of her time. She died when her ship sank off the Western Rocks and was first buried on Rosevear, before eventually being interred at Old Town Church.
The Jan Hus Memorial stands at one end of Old Town Square. The huge monument depicts victorious Hussite warriors and Protestants who were forced into exile 200 years after Hus, and a young mother who symbolises national rebirth. The monument was so large that the sculptor designed and built his own villa and studio where the work could be carried out. It was unveiled in 1915 to commemorate the 500th anniversary of Jan Hus' martyrdom. The memorial was designed by Ladislav Šaloun and paid for solely by public donations.
Born in 1369, Hus became an influential religious thinker, philosopher, and reformer in Prague. He was a key predecessor to the Protestant movement of the sixteenth century. In his works he criticized religious moral decay of the Catholic Church. Accordingly, the Czech patriot Hus believed that mass should be given in the vernacular, or local language, rather than in Latin. He was inspired by the teachings of John Wycliffe.