Counts of Agüero Condes de Agüero First holder Antonia González Echevarría, 1st countess of Agüero * 1800 Records #2 Holders Family filter On/Off 1 Antonia González Echevarría, 1st countess of Agüero * 1800 2 Francisca Agüero y González, 1ª duchess of Prim, 2nd countess of Agüero * 1821 Corrections and Updates To suggest a correction or an update. Click Here