Citation Hunt

The Wikipedia snippet below is not backed by a reliable source. Can you find one?

Click I got this! to go to Wikipedia and fix the snippet, or Next! to see another one. Good luck!

In page Battle of Nájera:

"

The political situation was quite different; more people adhered to the cause of Peter that gained strength, while his alliances weakened, because avoiding confrontation was seen as a sign of weakness by the Castilian nobility. Time was playing against the ambitious Henry, who advanced with his forces, leaving behind the protection of the river Najerilla to confront his half-brother. To prevent disaster, he had to face the most prominent mercenary troops of Europe, outnumbered, in a battle in the open and with the river in his back cutting his retreat, despite the opposition of Beltrán du Guesclin and the rest of his field commanders.[1]