Berengar had pressed for the imperial crown ever since he had defeated and driven Emperor Louis the Blind out of Italy in 905. John X used this as leverage to push Berengar into supporting and providing troops to the Saracen campaign. Having completed his end of the bargain, Berengar now insisted that John do likewise. So in December 915, Berengar approached Rome, and after being greeted by the family of Theophylact (whose support he secured), he met Pope John at St. Peter’s Basilica. On Sunday 3 December, John crowned Berengar as emperor, while Berengar in turn confirmed previous donations made to the See of Peter by earlier emperors.