Alonso De Mendoza was born about 1550, in Badajoz, Extremadura, Spain. He married Isabel De Trejo in Badajoz, Extremadura, Spain. They were the parents of at least 1 son.
Some characteristic forenames: Spanish Jose, Juan, Manuel, Jesus, Carlos, Luis, Francisco, Miguel, Ramon, Pedro, Roberto, Jorge. Portuguese Anatolio, Godofredo, Anabela, Catarina, Ligia, Marcio, Paulo, Sil.
Basque: habitational name from any of several places in the provinces of Araba/Álava and Biscay in the Basque Country called Mendoza, named with Basque mendi ‘mountain’ + otz ‘cold’ + the definite article -a.
Jewish (Sephardic): adoption of the Iberian surname (see 1 above) at the moment of conversion to Roman Catholicism. After the return to Judaism (generations later), some descendants retained the name their families used as Catholics.
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