The Paris AtlasCharting the artists, works, and places worth returning to.
  • Architect
· French

Jean-Baptiste-Antoine Lassus

The architect who took charge of the Sainte-Chapelle's restoration in 1841, part of the campaign that brought the ruined chapel back from its years as a government archive store — and the training ground for the Gothic restoration he and Viollet-le-Duc went on to carry out at Notre-Dame.

Details

Nationality
French
Roles
Architect

Jean-Baptiste-Antoine Lassus’s Places

The cataloged places connected to Jean-Baptiste-Antoine Lassus — through the books, and through the documented record.

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Sourced claims

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Worked at · 1844–1857

Notre-Dame de Paris

The competition to restore Notre-Dame was launched in 1842 and won in 1844 by Lassus and Eugène Viollet-le-Duc. Their submission proposed a deliberate restraint — "une religieuse discrétion", a complete self-effacement before the building. Lassus died in 1857 with the work unfinished; Viollet-le-Duc carried it on, and the spire they designed together stood until the 2019 fire.

The Architects of Notre-Dame, Read 24 August 2026

Worked at · 1841–1863

Sainte-Chapelle

The chapel's restoration ran from 1840 to 1863 under Félix Duban, Jean-Baptiste-Antoine Lassus and Émile Boeswillwald, with the stated aim of returning the building to its thirteenth-century appearance. Lassus took charge in 1841. He and Viollet-le-Duc went on to restore Notre-Dame; the Sainte-Chapelle is where that generation learned how.

Histoire de la Sainte-Chapelle, Read 24 August 2026