Horatia Morier British noble (1819–1915); wife of Algernon St Maur, 14th Duke of Somerset (1819–1915) Parents John Morier Horatia Seymour Children Lord Edward St Maur Algernon St Maur, 15th Duke of Somerset Lord Ernest St Maur Lord Percy St Maur Siblings Frances Horatia Morier Katherine Georgiana Morier Partners Algernon St Maur, 14th Duke of Somerset