stamara, rose in revolt against him.
Peter, however, was capable and energetic, and not without support from
certain sections of the Castilians. Moreover, he was friendly with
Charles of Navarre, and allied with Edward III. On the other hand Henry
found powerful backing from the King of Aragon, and made an appeal to
the King of France. This gave Charles V. the chance he wanted. He hated
Peter, who was reputed to have murdered his own wife, Blanche of
Bourbon sister of the Queen of France, and in 1365 he agreed to give
Henry assistance. Du Guesclin welded the scattered companies into an
army and led them against the Spanish king. The pope fell in with the
scheme as an indirect way of realising his crusading ambition. When
Henry had become King of Castile, the companies would go on to attack
the Moors of Granada. English and French mercenaries flocked gladly
together under Du Guesclin's banner. Edward in vain ordered his
subjects not to take part in an invasion of the lands of his friend and
cousin, Peter of Castile. Though Chandos declined at the last moment to
follow Du Guesclin into the peninsula, Sir Hugh Calveley would not
desist from the quest of fresh adventure, even at the orders of his
lord. Professional and knightly feeling bound Calveley to Du Guesclin
more closely than their difference of nationality separated them, so
that Calveley took his part in the Castilian campaign with perfect
loyally to his ancient enemy. In December, 1365, Du Guesclin and his
followers made their way through Roussillon and Aragon into Castile.
The spring of 1366 saw Peter a fugitive in Aquitaine, and Henry of
Trastamara crowned Henry II. of Castile. Most of the companies then
went home, though Du Guesclin and Calveley remained to support the new
king's throne.

The deposed tyrant went to Bordeaux, where since 1363 the Black Prince
had been resident as Prince of Aquitaine; for in 1362 Edward had erected
his new possessions into a principality and conferred it on his eldest
son, in the hope of conciliating the Gascons by some pretence of
restoring their independence. At Bordeaux Peter persuaded the prince to
restore him to his throne by force. Edward also agreed to support Peter,
and sent his third son, John of Gaunt, to march through Brittany and
Poitou with a powerful English reinforcement to his brother's resources,
while the lord of Aquitaine assembled the whole, strength of his new
principality for the expedition. At the bidding o