Château de la Bourdaisière, Renaissance château in Montlouis-sur-Loire, France

Château de la Bourdaisière is a château in Montlouis-sur-Loire, rebuilt from the late 18th to the early 19th century after most of the Renaissance building was destroyed in 1775. Its light grey stone facade has a round corner tower with a tall conical slate roof, a square tower-like projection above the central arched doorway, and rows of rectangular windows with white frames and small balconies. The building stands on a lawn behind a low stone wall.

A 14th-century fortress of Marshal Jean I Le Meingre, called Boucicaut, stood here. In 1520 Marie Gaudin and her husband Philibert Babou, Francis I's finance superintendent, built a new château, keeping one medieval tower. In 1775 Choiseul had it partly demolished for stone for his Chanteloup pagoda; Baron Joseph Angelier rebuilt it from 1802, and it was inscribed as a monument historique in 1947.

The kitchen garden at the château holds one of the largest collections of tomato varieties in France, with hundreds of old and rare types grown each season. Visitors can walk through the rows in summer and see how different the fruits look from one variety to the next.

The château sits about 6 miles (10 km) east of Tours and is easiest to reach by car, with parking available on site. The gardens are best visited in summer when the tomato collection and flower beds are in full growth.

The château is linked to two women who were favorites of French kings: Marie Gaudin and Gabrielle d'Estrées, both connected to this estate in the 16th century. Having two such figures tied to the same house within a single century is rare even by Loire Valley standards.