Princes of Blacas Princes de Blacas Records #3 Holders Family filter On/Off 6 Pierre de Blacas d' Aulps, 6th duke and 6th prince of Blacas * 1913 Casimir de Blacas d' Aulps, 7th duke and 7e prince of Blacas, marquis of Baux * 1943 Louis de Blacas d' Aulps, 2e prince et duke of Blacas * 1815 Corrections and Updates To suggest a correction or an update. Click Here