Delisle in _Bibliotheque de l'Ecole
des Chartes_, serie ii., iv., 513-55 (1856).

Untaught by experience, Henry III. listened to the appeals of his
mother and her husband. Richard of Cornwall, who came back from his
crusade in January, 1242, was persuaded that he had another chance of
realising his vain title of Count of Poitou. But the king had neither
men nor money and the parliament of February 2 refused to grant him
sums adequate for his need, so that, despairing of dealing with his
barons in a body, Henry followed the legate's example of winning men
over individually. He made a strong protest against the King of
France's breach of the existing truce, and his step-father assured him
that Poitou and Gascony would provide him with sufficient soldiers if
he brought over enough money to pay them. Thereupon, leaving the
Archbishop of York as regent, Henry took ship on May 9 at Portsmouth
and landed on May 13 at Royan at the mouth of the Gironde. He was
accompanied by Richard of Cornwall, seven earls, and 300 knights.

Meanwhile Louis IX. marshalled a vast host at Chinon, which from April
to July overran the patrimony of the house of Lusignan, and forced many
of the confederate barons to submit. Peter of Savoy and John Mansel,
Henry's favourite clerk, then made seneschal of Gascony, assembled the
Aquitanian levies, while Peter of Aigueblanche, the Savoyard Bishop of
Hereford, went to Provence to negotiate the union between Earl Richard
and Sanchia, and, if possible, to add Raymond Berengar to the coalition
against the husband of his eldest daughter. Henry hoped to win tactical
advantages by provoking Louis to break the truce, and mendaciously
protested his surprise at being forced into an unexpected conflict with
his brother-in-law. Towards the end of July, Louis, who had conquered
all Poitou, advanced to the Charente, and occupied Taillebourg. If the
Charente were once crossed, Saintonge would assuredly follow the
destinies of Poitou; and the Anglo-Gascon army advanced from Saintes to
dispute the passage of the river. On July 21 the two armies were in
presence of each other, separated only by the Charente. Besides the
stone bridge at Taillebourg, the French had erected a temporary wooden
structure higher up the stream, and had collected a large number of
boats to facilitate their passage. Seeing with dismay the oriflamme
waving over the sea of tents which, "like a great and populous city,"
covered the right bank, th