Katherine Sinclair Peerage person ID=343774 Parents Anne Dunbar George Sinclair, 1st of Barrock Children Siblings Jean Sinclair Margaret Sinclair John Sinclair, 2nd of Barrock Alexander Sinclair of Swinzie Anne Sinclair Robert Sinclair Benjamin Sinclair Janet Sinclair James Sinclair George Sinclair William Sinclair David Sinclair Elizabeth Sinclair Partners Charles Sinclair of Bilbster