Who was Ada Lovelace's mother?

Ada Lovelace’s mother was Anne Isabella Milbanke, later known as Lady Byron.

Anne Isabella Milbanke was born in 1792 and became the wife of the poet George Gordon Byron, 6th Baron Byron. Ada, born Augusta Ada Byron in 1815, was their only legitimate child. The marriage quickly broke down, and Lord Byron separated from Anne shortly after Ada’s birth.

Anne was highly educated and interested in mathematics, earning the nickname “Princess of Parallelograms” in her youth. She deliberately encouraged Ada’s study of mathematics and science, partly because she feared that Ada might inherit what she regarded as Byron’s volatile artistic temperament.

Mary Somerville was not Ada’s mother, although she was an important scientific role model and acquaintance. Caroline Herschel was an astronomer, while Mary Wollstonecraft—often confused in women’s intellectual history—was Mary Shelley’s mother, not Ada Lovelace’s.