It was 'noble' of her to come forward with this information.
She married a man of 'noble' [='aristocratic'] birth/rank.
a 'noble' ideal/ambition/cause/purpose
(..) I can't remember a queen who was better loved than my granddaughter. The common people loved her. The nobles loved her. And what is left of her now? Ashes. Commoners, nobles, they're all (..)2017 TvShow: Game of Thrones Title: Stormborn Season: 7 Episode 2