Letters to William Owen, 1666, Sir Robert Owen, 1690, and Dame Margaret Owen, 1698-1709, William Owen, 1730-1765, Robert Godolphin Owen, 1777-1784, Owen Ormsby, 1793, 1796, William Ormsby-Gore, 1830-1843, and William Richard Ormsby-Gore, 1887, received from the agents of Brogyntyn and Llanddyn and from other individuals, sometimes accompanied by relevant letters from third parties. Recurrent subjects include the submission and payment of accounts; rent collection; leasing of properties; payment of chief rents, poor rate and taxes; debts on the estate of Sir Robert Owen; problems with the lease of Ruyton Park from Lord Craven, 1701-1705; the provision of commodities; sales of timber and livestock; fishing rights and the lease of Llynclys Pool from Lord Powis, 1740-1743; property purchases; and repairs to estate buildings.