St. Augustine Catholic Church of New Orleans is in the Archdiocese of New Orleans. The parish was founded in 1841 under the episcopacy of Bishop Antoine Blanc, who later served as New Orleans' first Archbishop. Established by free people of color, who also bought pews for slaves, this is the oldest African-American Catholic parish in the nation. It was one of the first 26 sites designated on the state's Louisiana African American Heritage Trail. The property on which St. Augustine stands was once part of the Claude Tremé plantation.