Counts of Buena Vista Condes de Buena Vista Records #2 Holders Family filter On/Off 4 Manuel O' Reilly y Calvo de la Puerta, 4th count of Buena Vista * 1797 Juan de la Cámara y O' Reilly, 6th count of Buena Vista * 1897 Corrections and Updates To suggest a correction or an update. Click Here