Lamond Leslie was the seventh of fourteen children of Hugh Leslie and Agnes Anne Lamond. To house his large family, Hugh Leslie built Powis House in 1802, from the profits of the family's Jamaican plantations. Of the fourteen children, only one married, and he died childless. In 1873, the Powis estate was divided between the last surviving children, Esther, Christian, Lamond, Isabella Jane and Helen. These five sisters were known for their generosity to local causes. For example they donated the land on which Powis church was built. By 1881 Lamond, as eldest surviving sibling, was head of the Powis household. Lamond died at Powis House on 16 Feb 1892 and left her estate to her only surviving sibling, Isabella Jane.