ouis returned to the
north, the Count of La Marche undertook the conquest of Gascony. He
soon made himself master of St. Emilion, and of the whole of Perigord.
The surrender of La Reole opened up the passage of the Garonne, and the
capture of Bazas gave the French a foothold to the south of that river.
Only the people of Bordeaux showed any spirit in resisting Hugh. But
their resistance proved sufficient, and he withdrew baffled before
their walls.

The easiness of Louis' conquests showed their instability. "I am sure,"
wrote one of Henry's officers, "that you can easily recover all that you
have lost, if you send speedy succour to these regions." After the
capture of Bedford, Hubert undertook the recovery of Poitou and the
defence of Gascony. Henry's younger brother Richard, a youth of sixteen,
was appointed Earl of Cornwall and Count of Poitou, dubbed knight by his
brother, and put in nominal command of the expedition despatched to
Gascony in March, 1225. His experienced uncle, William Longsword, Earl
of Salisbury, and Philip of Aubigny, were sent with him as his chief
counsellors. Received with open arms by Bordeaux, he boasted on May 2
that he had conquered all Gascony, save La Reole, and had received the
allegiance of every Gascon noble, except Elie Rudel, the lord of
Bergerac. The siege of La Reole, the only serious military operation of
the campaign, occupied Richard all the summer and autumn, and it was not
until November 13 that the burgesses opened their gates. As soon as the
French had retired, the lord of Bergerac, "after the fashion of the
Poitevins," renounced Louis and professed himself the liegeman of Earl
Richard. Then the worst trouble was that Savary de Mauleon's ships
commanded the Bay of Biscay, and rendered communication between Bordeaux
and England very difficult.[1] Once more the men of the Cinque Ports
came to the king's aid, and there was severe fighting at sea, involving
much plunder of merchant vessels and dislocation of trade.

[1] The names of his _familia_ taken with him are in _Patent
Rolls of Henry III._, 1216-1227, pp. 461-62.

The English sought to supplement their military successes by diplomacy.
Richard of Cornwall made an alliance with the counts of Auvergne, and
the home administration negotiated with all possible enemies of the
French King. A proposal to affiance Henry's sister, Isabella, to Henry,
King of the Romans, the infant son of Frederick II., led to no results,