[1][2] He entered the Franciscan order on 17 January 1629, in the Convento Grande in Mexico City.
On 20 January 1630, he made his solemn vows in the Convento de San Francisco in Puebla.
[1] Over the course of more than thirty years, Ibargaray served as custos of a number of missions, including San Miguel (1635), Pecos (1636),[1] Nambé (1662),[3] and Galisteo (1663–1665).
[4] On 6 October 1653, he was elected as custodio, or head, of the Franciscan missions in New Mexico,[5][6] a position he held until 1656.
[8] Governor Bernardo López de Mendizábal described Ibargaray as "very headstrong and uncontrolled".