The manner of Lawrence's execution grew more specific the further removed the source is from 258. The earliest references to his death, including a passing mention by the bishop and martyr Cyprian of Carthage writing the same year, confirm only that he was killed days after Sixtus. It is Ambrose of Milan, writing on the duties of the clergy around 391, who first records that Lawrence was burned rather than killed by the sword, the method more usual for Roman citizens. The still more specific image of a gridiron, and the taunting remark attributed to Lawrence as he lay on it, that he was done on one side and should be turned to cook the other, appears fully formed only in later hagiography such as the Golden Legend, compiled in the thirteenth century, more than a thousand years after the event.
Because of this widening gap between event and detail, some modern historians have proposed the gridiron tradition arose from a scribal or textual confusion, a Latin word for burned or for the manner of execution possibly misread or elaborated over generations of retelling, though no alternative explanation has displaced the traditional account in popular veneration. The atlas records the gridiron as the church's long-held tradition about his death rather than as an independently attested fact, a distinction that matters for how confidently the detail should be stated rather than for the veneration itself, which the gridiron account has carried for over a thousand years regardless of its origin.
Lawrence's patronage, drawn directly from the legend, extends to cooks, chefs, and comedians, a wry association with the manner of his death, alongside more solemn patronage of the poor, of deacons, and of librarians and archivists, tied to his stewardship of the church's goods and records.