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
(..) But thy deed is great, and thine heart is pure. - I am eternally in your debt. - And where would a brave knight be without his noble steed? I hope you heard that. She called me a noble steed. She think I'm a steed. T . You may remove your helmet, good Sir Knight. (..)2001 Shrek
(..) People of DuLoc, I give you our champion! - What? - . You've won the honour of embarking on a great and noble quest. Quest? I'm already on a quest, a quest to get my swamp back. - Your swamp? - Yeah, my swamp! Where you dumped (..)2001 Shrek