Mantegna was apprenticed as a child to the painter Francesco Squarcione, whose Padua workshop was one of the most active in Italy, and was admitted to the painters' guild within a year, an unusual achievement for someone so young^[1]. By seventeen he had left to set up on his own. Padua in the 1440s and 1450s was a centre of interest in classical antiquity, and Mantegna built a reputation on archaeological accuracy alongside experiments in perspective^[1]. From 1443 Donatello was in the city carving the high altar of the Basilica of Sant'Antonio, and from him Mantegna learned to give figures and drapery a sculptural, almost carved weight^[1]. That training in hard, sculptural form is visible in the way Mantegna handled single standing saints such as Christopher: bodies read as solid, load-bearing mass rather than soft flesh.

Christopher's story, as told in medieval legend, made him one of the most widely painted saints in Christian art: a figure of enormous physical strength put to humble use, carrying strangers across water for no reward. Painters used him to show scale and physical effort, a giant's frame set against a small, deceptively heavy child. He was invoked for protection on journeys, and his image was placed where travellers would see it, often near church doors, on the belief that a glance at Christopher would protect the viewer from sudden death that day. Mantegna's Padua produced several images of standing saints treated with this same weight and gravity, a style suited to a figure defined by physical burden.

Mantegna's largest early undertaking was a fresco cycle in the Ovetari Chapel of the church of the Eremitani in Padua, painted from around 1448 with other artists and largely finished by Mantegna alone after his collaborators died or moved on. The cycle told the lives of Saint James and Saint Christopher across the chapel walls, and included a Martyrdom of Saint Christopher long admired for its daring low-angle perspective^[2][3]. On 11 March 1944 a stray Allied bomb hit the church and destroyed most of the chapel^[4][5]. Two scenes that had been detached years earlier for study survived; the rest was reduced to fragments. Restorers later reassembled one fresco from more than 1,800 recovered paint chips, a small part of what was lost^[4]. Gombrich called it one of the greatest single losses to art of the war^[3]. The Cleveland drawing is a separate, independent work rather than a piece of that fresco cycle: it shares the same subject and the same hand, but was made around 1500, decades after the Ovetari frescoes and after Mantegna had left Padua for the Gonzaga court in Mantua^[6].