The one appropriated Mayo as the Lower (Oughter) M`William, and the earldom of Mayo perpetuates the memory of the event.
In this work he endeavoured to show, by an examination of geographical names, that a race or races speaking dialects allied to modern Basque once extended through the whole of Spain, the southern coast of France and the Balearic Islands, and suggested that these people, whom he identified with the Iberians of classical writers, had come from northern Africa, where the name of Berber still perhaps perpetuates their old designation.
It perpetuates the memory of the beautiful gateway which formed the triumphal entrance into the city of Constantine, and which survived the original bounds of the new capital as late as 1508, when it was overthrown by an earthquake.
The library of 1500 volumes which he bequeathed to the clergy of the diocese is housed in a building with an outside stair, standing near the cathedral, and the Bishop's Walk by the river also perpetuates his memory.
The east and south gates exist (the latter, a double gate with three arches flanked by two towers, is the Porta Praetoria, and is especially fine), while the rectangular arrangement of the streets perpetuates the Roman plan, dividing the town into 16 blocks (insulae).