Despite appearances, this is not a stained glass window. It is a painting on glass.

From Derbyshire UK:

St Gile’s church lies in the grounds of Calke Abbey. The earliest reference to a church on this site is in 1129 when it was seized from Calke Priory by the Abbot of Chester.

It was rebuilt in 1826 with a narrow tower and embattled nave.

The central courtyard shows the Elizabethan core of the house.

The National Trust has taken care to preserve the 19th-century yellow and white limewash on the walls of The West Passage.

When acquiring Calke Abbey the National Trust decided to make the building structurally sound but leave the house and its contents exactly as they found them:

The National Trust has made essential repairs to the fabric of the building and restored the Flower Garden to its gaudy Victorian glory, but, inside, it endeavours to present the place as it was found, preserving Calke Abbey’s potent, but fragile, atmosphere of quiet decay.  So a matchbox still props up the broken leg of the china pug dog in the Entrance Hall.

Today, Britain’s country houses are generally in better heart than they have been since the mid-19th century.  Calke Abbey reminds us of a bleaker time not so very long ago.*

This approach to the conservation leads to a fascinating incite of the history of the building and its owners.

*From the Calke Abbey guide book.