The château of Angers occupies a rocky promontory above the Maine River, a position used long before the surviving medieval fortress was built. Early settlement and Roman occupation preceded the residence of the counts of Anjou, whose power expanded during the Middle Ages. The site controlled a crossing and a strategic approach between western France and the Loire region. Its history therefore begins with geography and regional authority, while the imposing walls visible today chiefly reflect the French monarchy's thirteenth-century effort to secure newly consolidated royal territory.

Under Louis IX and the regency of Blanche of Castile, builders created a massive enclosure reinforced by seventeen towers. Dark local schist and pale limestone produced the fortress's distinctive horizontal contrasts. Deep ditches, defended gates, and closely spaced towers made the complex a formidable military installation. Within the walls, however, successive owners maintained residences, service buildings, gardens, and religious spaces. The castle was both a defensive stronghold and a place where courtly life, administration, hospitality, and the management of extensive estates could be organized.

The dukes of Anjou transformed the interior during the later Middle Ages. Louis I commissioned the great Apocalypse Tapestry in the late fourteenth century, translating the Book of Revelation into a monumental woven narrative. Its imagery also reflects the anxieties and material world of the Hundred Years War. Later patrons, including René of Anjou, supported art, literature, and refined residence within the fortress. The chapel, royal lodgings, and gatehouse preserve aspects of this courtly phase, although demolition and subsequent use have altered the original arrangement.

During the religious conflicts of the sixteenth century, royal orders threatened the fortress with dismantling. Its towers were reduced, but the enclosure survived and was adapted to changing artillery requirements. Later military and prison uses preserved some structures while damaging others. The Apocalypse Tapestry followed a separate history through cathedral ownership, neglect, dispersal, and recovery. In the twentieth century, a purpose-built gallery returned the surviving panels to the château, providing a protected setting for a work too fragile for unrestricted exposure to light and fluctuating conditions.

The castle is now a national monument where visitors encounter ramparts, gardens, ducal architecture, archaeology, and the tapestry. Conservation addresses stone decay, roofs, fire protection, and the highly controlled environment needed for medieval textiles. Its importance comes from the contrast between an exceptionally powerful royal enclosure and the artistic culture once cultivated inside it. Angers also demonstrates how preservation involves recovery as well as survival: altered towers, restored buildings, and reunited tapestry fragments together communicate a history that no single untouched medieval moment could represent.