Muslim-Christian alliance in early crusader times?

Before and at the start of the First Crusade "An alliance existed between the Crusaders and the (muslim; TN) Fatimid rulers of Egypt (...) By the latter decades of the eleventh-century, these states (Byzantium and Fatimid Egypt; TN) had only known peace with each other in living memory, which is remarkable for the medieval world.

Development of Templar legistlation

"The legislative body by which the friars of the Temple govern themselves underwent many logical adaptations to suit the times, along its existence. In spite of this, they channeled themselves in two different and complimentary but equally valid points: on the one side papal bulls and on the other the general chapters.

Noble legacies to the Knights Templar

"An astonishing enthusiasm was excited throughout Christendom on behalf of the Templars. Princes and nobles, sovereigns and their subjects, vied with each other in heaping gifts and benefits upon them, and scarce a will of importance was made without an article in it in their favour. Many illustrious persons on their deathbeds took the vows, that they might be buried in the habit of the order. And sovereigns, quitting the government of their kingdoms, enrolled themselves amongst the holy fraternity, and bequeathed even their dominions to the Master and the brethren of the Temple.