San Telmo is named after Pedro Gonzalez Telmo, a Roman Catholic priest from Astorga in Spain who converted locals to Christianity in the early 13th century. Although he was never canonized for his efforts, Pope Innocent IV beatified him eight years after his death, in 1254.
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rnSan Telmo is one of the oldest parts of Buenos Aires, yet there are no specific monuments to visit. In terms of sight-seeing, your best bet is to walk the crumbling streets and soak up the vibe. Plaza Dorrego is an ideal spot to sip on an afternoon shandy, particularly on Sunday afternoon when the Feria de San Telmo attracts jewellery-makers and antique stalls surrounding the Plaza. The Plaza is overlooked by the blue-and-white tiled Iglesia Nuestra Señora de Belén.