His governess for some time was Agnes Porter .
When his father died in 1813 , Christopher was only ten years old , so his estates at Penrice and Margam were held in trust until he came of age in 1824 .
Christopher 's governess for some time was Agnes Porter .
When his father died in 1813 , Christopher was only ten years old , so his estates at Penrice and Margam were held in trust until he came of age in 1824 .