The Military Fortress of St Louis :

When Saint Louis, fights about it against Henri III Plantagenet and Pierre Duke of Brittany, came to Angers in 1230 it made quickly rebuild the Citadel and the Ramparts while going until requisitioning materials planned for work of the Cathedral. It is at this time that the 17 turns of the enclosure of the Castle were high. Work lasted of 1230 to 1240.
The surface occupied by the castle is 2,5 ha and its circumference measures nearly one kilometre. The dark colour of the turns comes from the roof slate used for construction. It is a sober unit, whose military and defensive character is immediately apparent. The castle had two doors having drawbridge and harrows, one giving on the city, the other on the countryside. A brother of St Louis, Charles I become Count d' Anjou and create the first Capitean dynasty of the Counts of Anjou.