He was the illegitimate son of the fourth marquess of Hertford, and was married to a commoner, but as he was the sole heir, he inherited the Marquess's vast fortune and his extensive art collection.
I mean, first people thought that your stepfather was a wife killer, then your sister takes up with her history teacher, and now we're supposed to parade a little bastard up and down the street.
Cersei stared at her, aghast. " Your lackwit sister gets herself raped by half of King's Landing, and Tanda thinks to honor the bastard with my lord father's name? I think not" .