The Night Watch was cut down to fit a wall, and the pieces were never found

The painting hanging in Amsterdam is not the painting Rembrandt delivered. In 1715 it was moved to the Town Hall on Dam Square — now the Royal Palace — and it did not fit. So strips were cut from all four sides: 64.4 cm off the left, 23.3 cm off the top, 11.3 cm off the bottom, 7 cm off the right. The pieces have never been found.

The left-hand strip is the one that matters. Losing two feet from that edge shoved Captain Frans Banninck Cocq and Lieutenant Willem van Ruytenburch into the middle of the picture, where they have sat ever since. Rembrandt had placed them right of centre. The composition everyone knows is a crop.

What is missing

The Rijksmuseum reconstructed the lost strips in 2021, and the differences are not trivial.

On the left there were three more figures — two militiamen and a young child — standing on a bridge. The powder boy in the left foreground turns out to be grasping a balustrade, and with the extra space he reads as running ahead of the company rather than being crushed against the frame. The militiaman at the far right gets his helmet back. Above the standard there was room, so the ensign raising the colours makes a movement that now has somewhere to go.

Every one of those losses is a loss of motion. The 1715 trim did not just shrink the picture; it stilled it.

What you are actually looking at

Not a night scene, and not a watch. The real title runs to a line and a half — The Night Watch Militia Company of District II under the Command of Captain Frans Banninck Cocq — and the nickname only attached itself at the end of the 18th century, by which point darkened varnish had done its work.

These are the arquebusiers, one of Amsterdam’s civic guard companies: militia and police. Painted on a shield beside the gateway are eighteen names, from Cocq and Ruytenburch down through the sergeants to Paulus Schoonhoven.

The Rijksmuseum makes a large claim for it, plainly: Rembrandt was the first to paint figures in a group portrait actually doing something. Everyone else lined the subscribers up. Here the captain is telling his lieutenant to start the company marching, and the guardsmen are still getting into formation — so the picture catches a company that has not yet become an image of itself.

Then the oddities. A drummer on the right. A barking dog. And, lit as brightly as the captain’s gesturing hand, a girl with a dead chicken hanging at her waist — the company mascot, according to the museum, and the strangest thing in Dutch painting.

How the missing parts were rebuilt

Because Cocq commissioned a copy. A small version attributed to Gerrit Lundens, painted somewhere between 1642 and 1655 and now on loan from the National Gallery in London, records the composition before the knife.

The Rijksmuseum used it as the basis for a reconstruction made with artificial intelligence: neural networks were trained on Rembrandt’s own technique and colour, then set to recreate the missing strips in his manner. The results were printed on panels and hung around the original — a reconstruction 393.1 × 507.4 cm against the 379.5 cm-high survivor.

Two things about that deserve credit. The museum was explicit that it is not going to incorporate the lost pieces into the actual restoration — the reconstruction is a research tool and a temporary display, not a repair. And it published the method rather than the illusion.

Reading. An AI reconstruction is a very good hypothesis, not a recovery. It depends entirely on Lundens having been accurate, and on a neural network’s imitation of Rembrandt being closer to Rembrandt than to itself. The museum’s own head of paintings, Pieter Roelofs, framed it as each generation using the tools available to it — which is the right amount of confidence.

The museum does not own it

This surprises people. The credit line reads “On loan from the City of Amsterdam”, and it has been a loan since 1808, when it went to the Trippenhuis. It was commissioned by the militiamen themselves for their own banqueting hall at the Kloveniersdoelen, where it hung as one of an ensemble of seven militia pieces, and it has belonged to the city ever since.

The 1715 order that led to the trimming survives, and reads like municipal admin: clean the large Rembrandt hanging in the hall of the Kloveniersdoelen, and then place it in the War Council Chamber of the Town Hall. Nobody recorded cutting it.

What isn’t known

• Where the strips went. Never found. The Rijksmuseum calls their fate “a great mystery” and does not speculate further.
• Who cut them, or on whose instruction. The surviving order says clean and move. The reduction goes unmentioned.
• How faithful Lundens was. The whole reconstruction rests on his copy, and a copyist is not a camera.
• What the reconstruction gets wrong. By definition unknowable, which is exactly why the museum will not paint it onto the canvas.

There is a lesson in it for anyone who assumes the famous version of a thing is the original. For three centuries the world has admired a composition created not by Rembrandt but by a carpenter with a wall to fill — and it took a copy, a neural network and two and a half years of research to see past it.

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See the original at Rijksmuseum →