de Tonnancour Manor

Updated April 15, 2024

Manoir de Tonnancour – Répertoire du patrimoine culturel du Québec

## De Tonnancour Manor (Manoir de Tonnancour): a rare slice of early Trois-Rivières history you can actually step into

At 864, rue des Ursulines in Trois-Rivières (Québec), the Manoir de Tonnancour sits inside the city’s historic core and is formally recognized as a heritage place.
What makes it worth your time isn’t just age. It’s the building’s layered life story—from an early 1700s residence on this site, to a major late-1700s reconstruction after fire, to a sequence of civic and religious roles, and finally to its current use as an art venue.

### Quick facts you can rely on
– Address: 864, rue des Ursulines, Trois-Rivières, QC (Canada).
– Other historic name: Maison Deschenaux (you’ll see this in heritage records).
– Current occupant/use: it houses the Galerie d’art du Parc (an exhibition centre in contemporary visual arts).
– Heritage recognition: formally recognized/classified in 1966 (Québec heritage designation; also listed on Canada’s register).

## Why the history is more interesting than “an old house”
Many write-ups flatten the timeline into “built in the 1700s.” The more accurate version is: there was an early manor on this spot in the 1720s, it was badly damaged by fire in 1784, and the standing building reflects a later reconstruction that reused parts of the earlier structure.

### A simple timeline (without the myths)
– 1723–1725: a stone house/manor is built for René Godefroy de Tonnancour and his wife Marguerite Ameau.
– 1784: a fire seriously damages the building; accounts describe the upper portions being destroyed and the site left in ruins for years.
– 1795–1797 (approx.): Judge Pierre-Louis Deschenaux acquires the property and reconstructs the house using surviving elements of the older structure; the building becomes associated with the name Maison Deschenaux.
– 19th–20th century uses: it serves different civic and community functions over time (including military and religious roles, then school use).
– 1976–1977: the city acquires the building and undertakes restoration in collaboration with Québec’s culture ministry; records note it was restored to reflect the Deschenaux-era form.
– Since 1981: the Galerie d’art du Parc has been housed here under agreement with municipal and governmental authorities.

That “two-buildings-in-one” reality is exactly why this place matters: you’re not looking at a frozen museum piece, but at an urban property that kept being re-purposed as Trois-Rivières changed around it.

## What to look for on-site (architecture nerd edition, but readable)
Heritage documentation highlights the manor as an example of an urban bourgeois residence from the turn of the 19th century—French tradition with British influences—and points out that it’s one of the rare known examples in the region featuring a mansard roof form at that moment in time.

As you walk the exterior, keep an eye out for:
– The three-storey massing and the rectangular stone building form.
– The mansard roof profile and dormers (a defining feature in the heritage description).
– The overall “fire-aware” construction logic—stone masonry and fire-separation elements are explicitly connected to historical fire-prevention rules in New France.

Inside, heritage records also call out select interior elements (fireplaces, stair details, mouldings, a coffered ceiling), but what you can access may depend on exhibitions and events.

## Visiting today: what it is (and what it isn’t)
Right now, the manoir functions through the Galerie d’art du Parc—a contemporary art exhibition centre that presents multiple exhibitions each year and frames the visit as both art + heritage.

### Hours, entry, and what may change
The gallery’s own site states:
– Admission is free.
– It lists a “regular schedule” and also shows a temporary closure notice with a reopening date posted. Because closures and exhibition schedules can change, treat any specific hours as time-sensitive and verify on the official page right before you go.

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## How to make the visit feel substantial (practical, not fluffy)
This is not a sprawling castle complex; it’s an urban historic house with a tight footprint. The best way to get value is to visit with a simple plan:
– Go for the double-layer experience: spend time with the current exhibition and take 5 minutes to study the building itself—roofline, window rhythm, and the way the structure sits in the historic district.
– Read the building’s “job changes”: few places move from elite residence → military use → religious administration → school → cultural venue. That progression is explicitly documented and gives you a real narrative to follow as you walk through.
– Pair it with a historic-centre walk: the manor is described as being in the heart of the historic arrondissement, which makes it easy to combine with nearby heritage streetscapes without needing extra transport.

## Data accuracy + inclusivity notes (what to watch)
– Name variants: You’ll see Manoir de Tonnancour and Maison Deschenaux in official records; using both improves clarity and matches heritage documentation.
– Timing nuance: “Built 1723–1725” is true for the original manor on the site, but the current recognized historic place is also documented as a 1795–1797 reconstruction incorporating earlier remnants—include both to avoid oversimplification.
– Hours/closure info is volatile: the official site shows a temporary closure and reopening note; don’t hard-code hours without a “verify before visiting” line.

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