Château de la Guignardière, Renaissance castle in Avrillé, France.

Château de la Guignardière is a Renaissance château outside Avrillé, begun in 1555 and never completed. Its three-bay, three-storey block and tall four-storey wing sit under steep slate roofs on oak timbers felled on the estate in 1556. Windows have granite mullions and two transoms; very tall red-brick chimneys rise above the roofline, and a curved perron stair stands at the centre of the garden facade.

Construction began around 1555 for Jean Girard, panetier (breadmaster) to King Henri II, on a symmetrical plan with tall flanking wings. After Girard was assassinated in 1563 the site was abandoned, and the Parisian master masons he had brought dispersed across the region, influencing local buildings for decades. The château was never completed; only in the 18th century did Count Sylvestre du Chaffault attempt to finish it, adding Ionic pilasters and a pediment dated 1773.

The château's name comes from Jean Girard, seigneur de la Guignardière. Since 2019 the site has operated as "Le Château des Aventuriers", with four paid puzzle trails (pirates' treasure, dinosaurs, a castle investigation, a haunted house) plus the "western city" and "Il était une fois" areas. The château can be visited freely or on a guided tour.

Interactive tours use smartphones or tablets to guide visitors through rooms while solving puzzles and uncovering historical details. These digital tools help make exploration more engaging and self-paced throughout the visit.

From 1920 Georges Clemenceau, the wartime French prime minister, rented a house on the estate called la bicoque ("the shack") and often dined with the owner, Amedée Luce de Tremont. The house is now state property, open to visitors as the Maison de Georges Clemenceau, separate from the château.