In 1886 after his father’s death, Cézanne married Hortense Fiquet, with whom he had had a secret liaison since 1870. She is said to have looked after the finished canvasses, which Cézanne never took care to keep and abandoned as soon as he completed the painting. In that year, when Paul was 47, he inherited the estate his father had purchased in 1859. By 1888 the family was in the former manor, Jas de Bouffan, a substantial house and grounds with outbuildings, which afforded them a new-found comfort.
Cézanne's idyllic period at Jas de Bouffan was temporary. From 1890 until his death he was beset by troubling events and he withdrew further into his painting, spending long periods as a virtual recluse. His paintings became well-known and sought after and he was the object of respect from a new generation of painters. The problems began with diabetes in 1890, destabilizing his personality to the point where relationships with others were again strained. He travelled in Switzerland, with Hortense and his son Paul, perhaps hoping to restore their relationship. Cézanne, however, returned to Provence to live, while Hortense and Paul junior, moved to Paris. Financial need prompted Hortense's return to Provence but in separate living quarters. Cézanne moved in with his mother and sister.
In 1891 he turned to Catholicism. Cézanne alternated between painting at Jas de Bouffan and in the Paris region, as before. In 1895 he made a germinal visit to Bibémus Quarries and climbed Mt. Ste. Victoire. The labyrinthine landscape of the quarries must have struck a note, as he rented a cabin there in 1897 and painted extensively from it. The shapes are believed to have inspired the embryonic 'Cubist' style. Also in that year, his mother died, an upsetting event but one which made reconciliation with his wife possible. He sold the empty nest at Jas de Bouffan and rented a place on Rue Boulegon, where he built a studio. There is some evidence that his wife joined him there.
The relationship, however, continued to be stormy. He needed a place to be by himself. In 1901 he bought some land along the Chemin des Lauves ("Lauves Road"), an isolated road on some high ground at Aix, and commissioned a studio to be built there (the 'atelier', now open to the public). He moved there in 1903. Meanwhile, in 1902, he had drafted a will excluding his wife from his estate and leaving everything to his son Paul; the relationship was apparently off again. She is said to have burned the mementos of Paul's mother.
From 1903 to the end of his life, he painted in his studio, working for a month in 1904 with Émile Bernard, who stayed as a house guest. After his death it became a monument, Atelier Paul Cézanne, or les Lauves.
During this troubled period from 1890 onward, Cézanne moved into his late phase. Now he concentrated on a few basic subjects: still lifes of studio objects built around such recurring elements as apples, statuary, and tablecloths; studies of bathers, based upon the male model and drawing upon a combination of memory, earlier studies, and sources in the art of the past; and successive views of the Mont Sainte-Victoire, a nearby landmark, painted from his studio looking across the intervening valley. The landscapes of the final years, much affected by Cézanne's contemporaneous practice in watercolor, have a more transparent and unfinished look, while the last figure paintings are at once more somber and spiritual in mood.