[5] The dedication of the church was originally to St Mary but changed in 1510 by Katherine of Aragon, who had come into possession of the manor of Lechlade in 1501.

[6] The nave roof and clerestory, the north porch, and the tower and spire may have been added in the early 16th century following a fire in 1510.

[3] In September 1815 Percy Bysshe Shelley visited Lechlade with his future wife Mary, her step-brother Charles Clairmont, and the novelist Thomas Love Peacock, and was moved to compose a poem, A Summer-Evening Churchyard, Lechlade, Gloucestershire, which was published the following year.

[11] The parish of Lechlade is part of the South Cotswold Team Ministry benefice within the Diocese of Gloucester.

The three-stage west tower is supported by diagonal buttresses and topped with angle pinnacles, embattled parapet and an eight-sided spire.

[13] Some of the fittings including the 13th-century piscina, font and the figure of St Agatha in the north aisle are from the earlier church on the site.