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
(..) Carla noticed the rash on his legs. You could have been back into my good graces and instead you passed the credit on to a nurse. How noble. l tell you what, l'll get the cafeteria staff to write ''Was it worth it?'' on a big cake for you. ''...station''. This is the nurses' station. (..)2001 TvShow: Scrubs Title: My Mentor Season: 1 Episode 2