This mantua is associated with the wedding of Isabella Courtenay to Dr. John Andrew in Exeter Cathedral on 14 May 1744. While it was acquired from the May Costume Sale at Christies in 1969 with no provenance, a later sale at Christies turned up a number of Victorian photographs of ladies in fancy dress costumes including an image showing this dress being worn by Caroline Mary Walwyn. The photograph was inscribed "Caroline Mary Walwyn, in the dress of Isabella Courtenay who was married 14th May 1744 in the Cathedral of Exeter". It was probably not the actual wedding dress, but could have been specially made for the bride's first Court appearance as a married woman.