What is "amboise"

Amboise is a commune in the Indre-et-Loire department in central France. It lies on the banks of the Loire River, east of Tours. Today a small market town, it was once home of the French royal court. The town of Amboise is also only about away from the historic Château de Chenonceau, situated on the Cher River near the small village of Chenonceaux. Its former name was Ambacia, from the old name of the river and marsh Amasse.