Mary Penrhyn

Mary Penrhyn is the daughter of Lady Charlotte Smith-Stanley, who was born in 1801 and is the daughter of Edward Smith-Stanley, the 13th Earl of Derby. Her grandfather, Edward Smith-Stanley, the 13th Earl of Derby, was a British politician who lived from 1775 to 1851. Her other grandfather was Edward Smith-Stanley, the 14th Earl of Derby, a British politician who lived from 1799 to 1869.