When did Western European nobility stop dressing differently from peasants?

by kukkuzejt

A noble's clothes may cost 100 times yours, but they are very much the same cut and style.

[edit:typo]

Searocksandtrees

hi! the floor is open for the fashion historians here, but you may be interested in this section of the FAQ, which talks about the shift in mens fashion:

Suits & ties

This post, When did world leaders and politicians start dressing like businessmen?, is probably the most on-topic for you, but the others may be useful also