Photograph of a group of people taken outside Longford Castle. Margaret Pleydell-Bouverie (d. 1924) is seated in three-quarters left on horseback at the centre of the photograph. Her father, Sir Jacob Pleydell-Bouverie (1815-89), later the 4th Earl of Radnor, stands in right side profile by the horse's head, holding its bridle. An unidentified woman and child are seated on the steps of Longford Castle in the background.