What exactly was the black-winged god of desire? What secrets that masterwork uncovers about the rebellious artist

The young boy screams as his skull is firmly held, a massive digit digging into his cheek as his parent's powerful palm grasps him by the neck. That scene from Abraham's Sacrifice visits the Florentine museum, creating unease through Caravaggio's chilling rendition of the suffering youth from the scriptural narrative. It seems as if the patriarch, commanded by the Divine to kill his son, could break his neck with a solitary turn. Yet Abraham's preferred method involves the metallic steel knife he holds in his other palm, ready to cut Isaac's neck. One certain aspect remains – whoever modeled as Isaac for this breathtaking piece displayed remarkable expressive ability. There exists not only dread, surprise and pleading in his darkened eyes but also deep grief that a guardian could abandon him so utterly.

He adopted a familiar scriptural tale and transformed it so fresh and visceral that its horrors seemed to happen directly in front of the viewer

Standing before the painting, observers recognize this as a actual face, an accurate depiction of a adolescent model, because the identical boy – recognizable by his disheveled locks and almost dark pupils – appears in several other works by Caravaggio. In each case, that highly expressive visage dominates the scene. In John the Baptist, he peers mischievously from the darkness while embracing a ram. In Amor Vincit Omnia, he grins with a hardness acquired on Rome's streets, his black feathery wings demonic, a unclothed child running riot in a affluent residence.

Victorious Cupid, currently displayed at a British museum, constitutes one of the most embarrassing masterpieces ever created. Viewers feel totally unsettled looking at it. The god of love, whose darts inspire people with frequently painful desire, is portrayed as a extremely tangible, brightly illuminated unclothed figure, straddling overturned objects that comprise stringed devices, a musical score, plate armor and an builder's T-square. This heap of items echoes, deliberately, the geometric and architectural gear scattered across the ground in Albrecht Dürer's print Melencolia I – except in this case, the gloomy disorder is created by this smirking Cupid and the mayhem he can release.

"Love sees not with the vision, but with the mind, / And thus is feathered Cupid painted blind," wrote the Bard, shortly before this work was created around the early 1600s. But Caravaggio's Cupid is not blind. He gazes directly at the observer. That face – sardonic and ruddy-faced, staring with brazen confidence as he poses naked – is the same one that screams in terror in Abraham's Test.

When Michelangelo Merisi da Caravaggio created his three images of the identical unusual-looking kid in Rome at the dawn of the 17th century, he was the highly celebrated sacred artist in a city ignited by religious renewal. Abraham's Offering reveals why he was sought to adorn churches: he could adopt a scriptural story that had been depicted many occasions previously and make it so fresh, so raw and physical that the terror seemed to be happening immediately in front of the spectator.

However there existed another aspect to Caravaggio, evident as quickly as he arrived in the capital in the cold season that concluded the sixteenth century, as a painter in his early 20s with no teacher or supporter in the urban center, only talent and audacity. Most of the paintings with which he caught the holy metropolis's attention were everything but holy. That could be the very first resides in the UK's National Gallery. A youth opens his crimson mouth in a yell of agony: while stretching out his filthy fingers for a cherry, he has instead been bitten. Youth Bitten by a Reptile is sensuality amid squalor: observers can see the painter's dismal chamber reflected in the murky liquid of the glass vase.

The boy wears a pink flower in his hair – a emblem of the sex commerce in Renaissance painting. Venetian artists such as Titian and Palma Vecchio portrayed courtesans grasping blooms and, in a painting destroyed in the second world war but documented through images, Caravaggio represented a famous woman courtesan, clutching a bouquet to her bosom. The message of all these botanical signifiers is clear: sex for purchase.

What are we to make of Caravaggio's erotic depictions of boys – and of one boy in specific? It is a inquiry that has divided his commentators ever since he achieved mega-fame in the 1980s. The complex past truth is that the artist was not the queer hero that, for instance, the filmmaker put on screen in his twentieth-century film about the artist, nor so completely pious that, as some art historians improbably claim, his Youth Holding Fruit is in fact a portrait of Christ.

His early paintings indeed offer overt erotic implications, or even propositions. It's as if Caravaggio, then a destitute youthful artist, aligned with Rome's sex workers, selling himself to live. In the Florentine gallery, with this thought in consideration, observers might turn to another early work, the 1596 masterpiece Bacchus, in which the god of wine gazes coolly at you as he starts to untie the dark ribbon of his robe.

A few years after Bacchus, what could have motivated the artist to paint Amor Vincit Omnia for the artistic collector the nobleman, when he was at last becoming nearly established with important church projects? This profane non-Christian deity resurrects the sexual challenges of his initial paintings but in a increasingly intense, uneasy way. Half a century later, its hidden meaning seemed obvious: it was a portrait of the painter's companion. A British visitor saw the painting in about 1649 and was informed its subject has "the body & face of [Caravaggio's|his] owne youth or assistant that laid with him". The name of this adolescent was Francesco.

The painter had been dead for about 40 years when this account was recorded.

Rachel Hernandez
Rachel Hernandez

Tech enthusiast and home automation expert with a passion for simplifying smart living through practical advice and innovative solutions.