The Palace of the Counts of Poitiers is the former count's palace of Poitiers and the former ducal palace of Aquitaine. It is a medieval testimony to the Angevin Gothic architectural style.

Of the old palace built by William IX, the famous William the Troubadour and grandfather of Eleanor of Aquitaine, all that remains today is the Maubergeon Tower located behind the courthouse.

Aliénor bequeathed to us the great hall, today the Salle des Pas Perdus, which she had fitted out from 1192 to 1204. In this room, lived the whole court of Aliénor, his court of Love, but one could also already do justice there. The Maubergeon Tower and the great hall bear witness to a very particular style, Plantagenêt (or Angevin) Gothic, just like Poitiers Cathedral, the construction of which began at the end of the 12th century.

Wife of the King of France, Louis VII, then of the King of England, Henri II Plantagenêt, mother of 10 children including Richard Coeur de Lion and Jean Sans Terre who were kings of England, Eleanor of Aquitaine had made her court a place of splendor and culture.

The Palace partly destroyed by fire in 1346 will be rebuilt, the Maubergeon Tower decorated with statues and a monumental fireplace, still visible today, built in the large courtyard room.