San Pietro in Montorio is a church in Rome which includes in its courtyard the Tempietto, a small commemorative martyrium (tomb) built by Donato Bramante. At the high altar are two tombs: that of Hugh, Baron of Dungannon, eldest son of Hugh O'Neill, The O'Neill, 2nd Earl of Tyrone, and the tomb shared by Rory O'Donnell, 1st Earl of Tyrconnell, and his brother Cathbharr, both of them younger brothers of Red Hugh O'Donnell.