Sir Pyers Mostyn, 9th Baronet landowner (1846-1912) (1846–1912) Parents Sir Pyers Mostyn, 8th Baronet Frances Fraser Children Sir Pyers Mostyn, 10th Baronet Helen Mostyn Clementina Mostyn Agnes Mostyn Siblings Margaret Mostyn George Mostyn Francis Mostyn Thomas Mostyn Clementina Mostyn Gertrude Mostyn Nicholas Mostyn Mary Mostyn Charlotte Mostyn Partners Anna Maria Perry