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
(..) Who comes before the ol gos this night? Sansa of the House Stark comes here to be we. A woman grown, trueborn an noble. She comes to beg the blessings of the gos. Who comes to claim her? Ramsay of House Bolton. Who gives her? (..)2015 TvShow: Game of Thrones Title: Unbowed, Unbent, Unbroken Season: 5 Episode 6