(Ital. the Holy Cross of Jerusalem), is one of the seven great basilicas of Rome. It was founded by Constantine in 331. It is particularly remarkable for the immense number of relics which it contains, all of which are exhibited on certain days, especially the fourth Sunday in Lent, for reverence and adoration of devotees. All who attend the services at that church on that day are entitled to certain indulgences; and all who share in the masses celebrated are entitled to the release of one soul from purgatory. See Seymour, Pilgrimage to Rome. (See BASILICA).