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
(..) - There were more of you? - Aye. - Yes. The men you see before you, and many men more. Went deep into the caves, we were noble gold miners. Because we could have seen the light in the darkness. Gus. You were just a boy, but you remember. When we returned to the surface. (..)2012 Snow White and the Huntsman