Trinidad Antonio Márquez Guerrero

Trinidad Antonio Márquez Guerrero was born on 12 November 1965 at San Julián, in the Diocese of San Juan de los Lagos, matching the roster birth date. He took the licentiate in canon law at the Universidad Pontificia de México and was ordained a priest on 27 April 1996, incardinated in the Diocese of San Juan de los Lagos. The Holy See bulletin lists his offices, undated, as formator at the minor seminary, judge and promoter of justice of the Ecclesiastical Tribunal, professor of the major seminary, chancellor, and collaborator in the parishes of San Juan Bautista and Espíritu Santo; at his appointment he was canon of the cathedral and judicial vicar, and member and moderator of the Presbyteral Council. Pope Francis appointed him auxiliary bishop of San Juan de los Lagos, titular bishop of Melzi, on 28 January 2026. He was appointed as a priest, so the consecration basis for his tenure is correct by construction; his appointment date is not his tenure start.

CONSECRATION TIER FLAG: his consecration date, 8 May 2026, rests on two agreeing secondary listings - GCatholic's 2026 newly-elected list (elected 2026.01.28, consecrated 2026.05.08) and Catholic-Hierarchy's May-June 2026 events page (8 May, 'Ordained Bishop,' titular Melzi, auxiliary of San Juan de los Lagos) - and is NOT diocesan-primary. Spanish and English searches for a Guadalajara boletín item, a San Juan diocesan item, or a CEM notice for the consecration returned no diocesan-primary page, and the roster source field's 'diocesan item 2026-01-28' could not be reproduced in this session; it is treated as an unverified parent lead, not cited. His consecrator or consecrators and the consecration venue are not stated in any opened page and are left blank. No motto is asserted: GCatholic's MAR page prints 'Omnis virtus in cruce' under his name and titles, but that entry is notably thin - unlike neighbouring entries it prints no born, ordained-priest, or consecrated-bishop detail lines at all - and no diocesan-primary or bulletin-confirmed motto was found, so the motto is recorded as HELD in the reference note and batch notes, not in prose. He has no other episcopal tenure; his 1996-2026 priestly service in the same diocese is background, not a tenure row.