Polignac, Duc de and Duchess de, husband and wife; were chargeable with the extravagances of the court of Louis XVI., and were the first to emigrate at the outbreak of the Revolution, the former dying in 1817 and the latter in 1793.
Definition taken from The Nuttall Encyclopædia, edited by the Reverend James Wood (1907)
Pole-star * Polignac, Prince de