Place Du Tertre.

Official heritage notice used for the 1133 abbey foundation context and historic setting around Place du Tertre.

Museum collection entry used for Saint-Pierre and abbey context near the square.

Official heritage notice confirming the church's 12th-century construction phase.

Transit heritage page used for Saint-Pierre chronology and Montmartre background.

Tourism page used for the reported 1147 consecration date and visitor context.

Secondary history source used for the square's early chronology, 1635 opening, and old map references.

Secondary history source used for repeated local anecdotes such as 1336 naming and 1775 hanging claims.

Used for overall chronology, local history, mairie reference, controversies, and civic context.

Secondary local history source used for map-date support and place background.

Tourism source used for the square overview, mairie claim, and La Mere Catherine context.

Duplicate museum citation in the research packet; used for church and abbey context.

Secondary summary used for timeline synthesis, Commune framing, and broad site history.

Used for Felix Desportes and the first mairie at No. 3 Place du Tertre.

Used for Montmartre's municipal birth in 1790 and early civic administration on the square.

Used for the restaurant's revolutionary-era history and the disputed bistro etymology legend.

Used for historical anecdotes, La Mere Catherine lore, and late 19th-century context.

Official archive source used for the 1860 annexation of Montmartre into Paris.

Used for annexation-era legal context around Montmartre and Paris.

Used for the dramatic 18 March 1871 cannon episode and Commune ignition point on Montmartre.

Alternate citation to the same Paris1900 historical page in the research packet.

Used as evidence for the Renault commemorative plaque on the square.

Used as supporting visual evidence for the 24 December 1898 Renault plaque claim.

Official legal source used for the artist-square regulatory framework and one-square-meter pitches.

Secondary legal summary used to explain the 1998 decision on artist permits.

Research packet citation used for the debated bistro etymology discussion.

Used for archaeological uncertainty around the earlier abbey footprint under later urban fabric.

Supporting repository citation for archaeology around Montmartre's earlier layers.

Used for general square description, nearby sights, and artist-square overview.

Used for atmosphere, artist activity, timing, sensory details, and practical visiting advice.

English tourism page used for square overview and visitor framing.

Used for the square's artist activity, cafe perimeter, and day-to-night atmosphere.

Used for nearby cultural context and quiet alternative to the crowded square.

Used for restaurant identity and long association with the square.

Used for side-street detours, Rue Durantin details, and lesser-known Montmartre corners.

Used for visual character, village-scale facades, and commentary on mass tourism.

Used for nearby photogenic facade and neighborhood context.

Used as evidence that guided walks around the square are actively marketed.

Used for guided-visit context around the site.

Used for crowd-level visitor impressions, atmosphere, and tourist feedback.

Official city source used for the current artist-permit system, vacant spaces, and annual fee.

Used for recent resident criticism of tourism pressure and the square's staged feel.

Used for French reporting on overtourism, resident fatigue, and local identity tensions.

Used for local opposition language around authenticity and tourism pressure.

Used for resident-style commentary on the square's changing character.

Used for local criticism of crowding, commercial pressure, and public-space conflicts.

Used for guidebook framing, local perceptions, and practical visitor context.

Used for recent cultural programming in the wider Montmartre area.

Used for current event programming and guided cultural experiences nearby.

Used for practical visit context tied to the church next to the square.

Used for mainstream guidebook framing of the square and its tourist image.

Used for safety advice about pickpockets and distraction scams in crowded tourist areas.

Used for restaurant history and local cultural importance.

Used for pricing and dining-category context on the square.

Used for quick-stop food and pastry context on the square.

Used for local coverage of the city's artist-place recruitment and ongoing debates.

Used for redevelopment pressure and public-space changes affecting the square.

Used for official district-level improvement works and accessibility updates.

Used for wider neighborhood pedestrianization and crowd-management context.

Used for dress and behavior guidance when visiting the nearby church.

Used for behavior, filming, and practical etiquette at the nearby basilica.

Used for filming and photography rules in Paris public space.

Used for permit and drone rules for professional shoots in Paris.

Used for current scam warnings around Montmartre approaches.

Used for nearby dining price references in the local-food section.