and everywhere bristled loop-holed towers from which the nobles could defy one another, and which commanded the entrances to dark filthy and winding streets. At frequent intervals the despondent apathy of the citizens would be rudely disturbed by a call to arms, and to the sound of hoarse battle-cries, the clashing of weapons upon steel corslet and helmet, and the waving of banners with the rival Ghibelline and Guelph devices of eagle and keys, bands of Orsini and Colonna would rush fighting through the narrow streets and across the waste spaces of the city, would fall back and advance to fight again until, with the darkness, they would retire behind their barred gateways, leaving their dead as so much carrion in the streets. These two families divided the greater part of Rome between them. The Orsini held the field of Mars and the Vatican district from their fortress in the ruins of the theatre of Pompey and their castle on Monte Giordano. This is now Palazzo Gabrielli, and it retains its portcullis and much of its mediaeval appearance. Tor di Nona and Tor Sanguigna were flanking towers to the Orsini stronghold. The Quirinal hill was occupied by the Colonna, their great castle standing almost on the same ground as their present palazzo, and they had an outlying fortress in the mausoleum of Augustus near the river. Occasionally a truce was patched up between the two families that they might unite against a common enemy, and for a period they agreed that two senators, one from each family, should be appointed to govern Rome in the pope's absence. But these peaceful intervals were short lived. On the slightest provocation, barricades would be run up, new entrenchments dug, and civil war would break out afresh. Again and again in their conflict with the Church the Colonna were worsted in the struggle, their estates confiscated, and themselves, root and branch, beggared and exiled; but there was a strength and vitality about the race that no adversity could subdue. Pope Boniface VIII., whose displeasure they had incurred, oppressed them for a while. Six Colonna brothers were exiled, and their ancestral town of Palestrina was razed to the ground by the Caetani, Boniface's relatives and adherents, and a plough was driven over the site to typify its permanent devastation. But a few years later the reckless Sciarra Colonna broke into the Pope's castle at Anagni, and made him prisoner with bitter taunts and reproaches. Later, Sciarra played a conspicuous part in the coronation of Lewis the Bavarian, and in gratitude for his services the Emperor allowed the single column of the family coat of arms to be surmounted by a golden crown.