Geograph - photograph every grid square

The four roundels are believed to be the only pre-Reformation stained glass to have survived in Scotland. The top left one is the royal arms, and on the right are the arms of Marie de Guise, widow of King James V, mother of Mary, Queen of Scots and a friend of Janet Rynd, the benefactress of the chapel. Underneath are the arms of MacQueen and of MacQueen impaled with Kerr, both bearing the initials MM for Michael MacQueen and IR for Janet Rynd. At some point a little piece of night sky with a tiny crescent moon has been inserted in the royal arms.