Castillon-sur-Agen
Introduction '''Castillon-sur-Agen''' was a medieval castle in the commune of Bon-Encontre, near Agen in Aquitaine, France.Built on the top of a small hill with sheer rock cliffs (the ''plateau de Castillou''), it was "fortified by both nature and artifice". According to the 12th-century chronicler Robert of Torigny, Henry II of England besieged Castillion-sur-Agen in 1161.After just one week the garrison capitulated. Roger of Howden recorded that nearly 15 years later, in 1175, the site was besieged by Prince Richard (later King Richard I of England), Henry II's son. On this occasion the siege lasted two months; it was part of a campaign of repressing rebellious barons after the Revolt of 1173–1174.It was Richard's first successful siege.
See also *List of castles in France
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