Found that "yorra" word, or word used as a name, in some areas around the world that I am sure were accessed by Portuguese - and Spanish - adventurers looking for opportunity on the high seas centuries ago.
"From what I can gather the terms of the treaty were that the ships and crews of the expedition(s) were to be provided by King Christian I and that Portuguese interests would be overseen by one Joao ("Yorra") vas [vaz] Corte Real, apparently a Portuguese nobleman with nautical connections. It might be noted here that the major base of Portuguese explorations was at Sagres, near Gibraltar, the port of which is at Lagos, a few miles away. Just a few miles west of Lagos is Palos, Spain, both places intimately familiar to Christopher Columbus, the former a place of salvation to him after his swim to shore in 1476, the latter his port of departure in 1492."