18 moments
Birth at Trévières
· Trévières, Calvados, France

Wikimedia Commons · Public domain · file Octave Henri Marie Mirbeau was born at Trévières in Calvados, Normandy.
Expulsion from the Jesuit college
· Collège Saint-François-Xavier, Vannes, Morbihan, France

Wikimedia Commons · Creative Commons Attribution-Share Alike 4.0 International · file Mirbeau attended the Jesuit Saint-François-Xavier college at Vannes until his expulsion in 1863, an experience later reflected in Sébastien Roch. Coordinates represent the former Jesuit-college area in Vannes; the source does not give a street address.
Law-school enrollment
· Faculty of Law of Paris, Paris, France

Wikimedia Commons · Creative Commons Attribution-Share Alike 4.0 International · file Mirbeau enrolled at the Faculty of Law of Paris, though he did not complete his studies. Coordinates represent the historic Latin Quarter law-faculty area.
Service in the Army of the Loire
· Army of the Loire operational area, Orléans, France
Mobilized during the Franco-Prussian War, Mirbeau served in the Army of the Loire; the defeat became a lasting subject in his fiction. The source identifies the Army of the Loire but not a specific posting; coordinates are a representative point at Orléans.
Move to Paris for journalism
· Paris, France

Wikimedia Commons · Public domain · file Mirbeau moved to Paris, began journalism with the Bonapartist Appel au peuple, and became Henri-Joseph Dugué de La Fauconnerie’s private secretary. The source establishes Paris but not the newspaper office address.
Marriage to Alice Regnault
· London, England, United Kingdom

Wikimedia Commons · Public domain · file Mirbeau married the former actress Alice Regnault in London after two and a half years of living together. The cited source identifies London but not the wedding venue; coordinates represent central London.
Residence at Kérisper
· Kérisper, Pluneret near Auray, Morbihan, France
Soon after their marriage, Octave Mirbeau and Alice Regnault rented a home at Kérisper near Auray in Brittany. Coordinates represent Kérisper near the Auray River; the rented house is not geocoded in the source.
Writing Sébastien Roch at Menton
· Menton, Alpes-Maritimes, France

Wikimedia Commons · Public domain · file Mirbeau began his novel Sébastien Roch while wintering on the Côte d’Azur at Menton. Coordinates represent Menton; no residence address is supplied.
Residence at Les Damps
· Les Damps, Eure, France

Wikimedia Commons · Public domain · file Mirbeau lived at Les Damps near Pont-de-l’Arche, where Camille Pissarro painted his garden. His residence there continued until February 1893. Coordinates represent Les Damps; the source does not provide the house coordinates.
Visit to Camille Pissarro
· Éragny-sur-Epte, Oise, France

Wikimedia Commons · CC0 1.0 Universal Public Domain Dedication · file Mirbeau visited Camille Pissarro and his family at their home in Éragny-sur-Epte, during their close artistic and personal friendship. Coordinates represent Éragny-sur-Epte; the Pissarro house address is not given in the source.
Residence at Clos Saint-Blaise
· Clos Saint-Blaise, Carrières-sous-Poissy, Yvelines, France

Wikimedia Commons · Public domain · file After leaving Les Damps, Mirbeau lived at Clos Saint-Blaise in Carrières-sous-Poissy, maintaining a garden that became notable to visitors. Coordinates represent Carrières-sous-Poissy because the precise historic extent of Clos Saint-Blaise is not specified by the source.
Dreyfusard meeting in Toulouse
· Toulouse, Haute-Garonne, France

Wikimedia Commons · Public domain · file During the Dreyfus Affair, Mirbeau participated in public meetings and was attacked by nationalist and antisemitic opponents at Toulouse. The precise meeting venue is not identified; coordinates represent central Toulouse.
Presence during the Rennes retrial
· Rennes, Ille-et-Vilaine, France

Wikimedia Commons · Public domain · file Mirbeau was in Rennes during Alfred Dreyfus’s rehabilitation trial, a major episode of his Dreyfusard engagement. The source establishes his presence at Rennes but does not state a more precise date or venue; the retrial occurred in 1899.
Dreyfusard meeting in Rouen
· Rouen, Seine-Maritime, France

Wikimedia Commons · Public domain · file Mirbeau took part in a Dreyfusard public meeting at Rouen, where nationalist and antisemitic opponents assaulted him. The precise meeting venue is not identified; coordinates represent central Rouen.
Move to avenue du Bois
· Avenue du Bois (now Avenue Foch), Paris, France

Wikimedia Commons · Public domain · file Mirbeau moved into a luxury apartment on avenue du Bois, now avenue Foch, while maintaining other residences. The source does not give an apartment number; coordinates represent the avenue.
Residence at the Château Vert
· Château Vert, Cormeilles-en-Vexin, Val-d'Oise, France

Wikimedia Commons · Public domain · file Mirbeau divided his time between Paris and the Château Vert at Cormeilles-en-Vexin, acquired by Alice Regnault in 1904. Coordinates represent Cormeilles-en-Vexin because the source does not provide a mappable address for Château Vert.
Residence at Cheverchemont
· Villa Cheverchemont, Triel-sur-Seine, Yvelines, France

Wikimedia Commons · Public domain · file Mirbeau had the villa Cheverchemont built at Triel-sur-Seine and wrote his last books there. Coordinates represent the Cheverchemont area on the heights of Triel-sur-Seine.
Death at rue Beaujon
· 1 rue Beaujon, 8th arrondissement, Paris, France

Wikimedia Commons · Public domain · file Mirbeau died on his sixty-ninth birthday at 1 rue Beaujon in Paris’s 8th arrondissement.