Sir Robert Barclay of Pierston, 3rd Bt. (1676-1728) (1676–1728) Parents Sir Robert Barclay of Pierston, 2nd Bt. Bethia Baird Children Siblings Margaret Barclay Elizabeth Barclay Sir James Barclay of Pierston, 4th Bt. John Barclay David Barclay Bethia Barclay