St Mary's church will host family fun day marking the completion of vital conservation work.
Members of the public will be able to view and photograph the newl-cleaned stained glass window.
St Mary's will be open for general public visits and for private prayers from 1pm - 4pm from 23 July. The family fun day will be hosted on 24 July from 11am - 3pm, with an additional day of events scheduled for 7 August.
The family event day will feature trails, arts and crafts, quizzes and games. It is free to enter, with donations welcome.
The Lydiard church's conservation project was undertaken by Wells-based company Holy Well Glass. The team professionally cleaned the church's 15th century stained glass window and revealed the face of the child Christ, which was thought to be lost.
St Mary's encourages the general public to come and view the stained glass window and learn about the discoveries made during the conservation project.
A spokesperson for the church said: "The stained glass was known to be comissioned from York in 1420 and has now been attributed to John Thornton of Coventry, a leading 15th century stained glass glazier. His major work was the great East window in York Minster."