Barons of Santa Cruz Barões de Santa Cruz Created by Louis I, king of Portugal Decree date 28-07-1864 First holder António Vicente Peixoto de Mendonça e Costa, 1st baron of Santa Cruz * 1808 Records #1 Holders Family filter On/Off 1 António Vicente Peixoto de Mendonça e Costa, 1st baron of Santa Cruz * 1808 Corrections and Updates To suggest a correction or an update. Click Here