"By the 1940s, the image without the groom had become the standard version, and it created the enduring visual signs of the strongman leader – when Nigel Farage makes a speech atop a tank, or Vladimir Putin displays his bare chest, both are drawing on iconography developed by the Italian fascist."

Ah yes, equestrian portraits, something famously invented by the fascists. Someone should dig up Jacques-Louis so we can tell him he's a fascist now.

Saying Mussolini developed iconography involving equestrian portraits is not the same as saying he invented equestrian portraits.