Talk:Charles François de Riffardeau, marquis de Rivière

which nobiliary rank -- Duc or Marquis?
There's a contradiction between the article's title -- "Charles François de Riffardeau, marquis de Rivière" -- and the lede, which states "...for which service he was made duc in 1825." Aristocrats are generally referred to by their highest title, and a duke outranks a marquis, so unless there's something that I'm missing, the title of the article should be "Charles François de Riffardeau, Duc de Rivière". Can anyone shed any light on this? Bricology (talk) 07:22, 12 February 2018 (UTC)