@icon-kid,
Quote:I have to wonder if there are other notable instances of the word "mantle" being used this way.
Only in dictionaries and such.
OED - An important role or responsibility that passes from one person to another.
Cambridge ED - the responsibilities of an important position or job, especially as given from the person who had the job to the person who replaces them.
Collins ED - If you take on the mantle of something such as a profession or an important job, you take on the responsibilities and duties which must be fulfilled by anyone who has this profession or job.
“It is a curious thing, Harry, but perhaps those who are best suited to power are those who have never sought it. Those who, like you, have leadership thrust upon them, and take up the mantle because they must, and find to their own surprise that they wear it well.”