Matronymics

A matronymic is a personal name or a parental name based on the given name of one's mother, grandmother, or any female ancestor. It is the female equivalent of a patronymic. Around the world, matronymic surnames are far less common than patronymic surnames. In some cultures in the past, matronymic last names were often given to children of unwed mothers. Additionally, if a woman was especially well known or powerful, her descendants might adopt a matronym based on her name. A matronymic is a derived name, as compared to a matriname, which is an inherited name from a mother's side of the family

Princess Siribha Chudabhorn (, ; ; born 8 October 1982), commonly known as Princess Ribha (, ; ), is the eldest daughter of Princess Chulabhorn Walailak and Virayudh Tishyasarin.