In 1204, Anjou was lost to King Philip II of France. It was re-granted as an apanage for Louis VIII's son Jean, who died in 1232 age thirteen, and then to Louis's youngest son, Charles (later the first Angevin King of Sicily).
In 1290, Marguerite married Charles, Comte de Valois, the younger brother of King Philippe IV of France. He became Count of Anjou in her right, and was created Duke of Anjou and a Peer of France in 1297.
On December 8, 2004, Henry, Count of Paris, Duke of France, Head of the Royal House of France and Orléanist Pretender to the French Throne as Henri VII, granted his nephew Charles Philippe the title of Duke of Anjou. Anjou is one of the traditional titles of the Bourbon-Orléans line since its founder, Philippe I, Duc d'Orleans, younger son of Louis XIII, held the style Duke of Anjou from his birth until 1660.
In 1941, Jaime, Duque de Segovia, claimed to have succeeded his father the exiled King Alfonso XIII of Spain as heir-male of the House of Capet and therefore as Legitimist claimant to the French throne. He then adopted the title of Duke of Anjou, as formerly born by his ancestor Felipe V of Spain.
Anjou main competitor was the county of Blois, which depended on the powerful county of Champagne but was almost totally annexated by Anjou.
The second and third houses of Anjou (1246-1480) bore from 1270 a semy of fleurs-de-lys (France ancient) with a bordure gules as the mark of cadency.
The flag of Anjou is common in the department of Maine-et-Loire, which corresponds more or less to the province of Anjou in 1789 (then much smaller than the county of Anjou in the XIIth century).
Geoffrey V (August 24, 1113 – September 7, 1151), Count of Anjou and Maine, and later Duke of Normandy, called Le Bel ("The Fair") or "Geoffrey Plantagenet", was the father of King Henry II of England, and thus the forefather of the Plantagenet dynasty of English kings.
Geoffrey was the eldest son of Fulk, Count of Anjou and King-Consort of Jerusalem.
The marriage was meant to seal a peace between England/Normandy and Anjou.