Christian Robertson of Ardblair (born 1769) (1769–1827) Parents Rachel Blair Joseph Robertson of Ardblair Children Caroline Oliphant Amelia Oliphant Rachel Oliphant Laurence Oliphant, 9th of Gask James Blair Oliphant, 10th of Gask Harriet Oliphant Christian Oliphant Margaret Oliphant Siblings James Blair Robertson Partners Laurence Oliphant, 8th of Gask