When MARIA ARZA AUZMENDI was born on 16 March 1699, in Ataun, Gipuzkoa, Basque Country, Spain, her father, IGNACIO ARZA GOICOECHEA, was 28 and her mother, Francisca Auzmendi Esquessabel, was 32. She married MIGUEL URRESTARASU ARZA on 25 October 1716, in Ataun, Ataun, Gipuzkoa, Basque Country, Spain. They were the parents of at least 1 son and 3 daughters. She died on 26 June 1731, in her hometown, at the age of 32.