Álvaro Fernandes (sometimes given erroneously as António Fernandes), was a 15th Century Portuguese slave-trader and explorer from Madeira, in the service of Henry the Navigator. He captained two important expeditions (in 1445 and 1446), which expanded the limit of the Portuguese discovery of the West African coast, probably as far as the northern borderlands of modern Guinea-Bissau. Álvaro Fernandes's farthest point (c. Cape Roxo) would not be surpassed for ten years, until the voyage of Alvise Cadamosto in 1456.

Álvaro Fernandes was the nephew João Gonçalves Zarco, discoverer and donatary captain of Machico (northern Madeira island). Fernandes was brought up (as a page or squire) in the household of Portuguese Prince Henry the Navigator.

In 1443, one of Henry's captains, Nuno Tristão, discovered the Bay of Arguin (on the modern coast of Mauritania), which was dotted with small Sanhaja Berber fishing villages, the first native settlements the Henrican captains had seen since passing Cape Bojador ten years earlier. This discovery whet the appetites of Portuguese merchants, who immediately saw the easy and profitable prospect of slave-raiding on those vulnerable settlements. Between 1444 and 1446, a cascade of Portuguese slave-raiding expeditions, organized by private consortiums and armed with Henry's license, ravaged the Arguin banks, seizing the poor Arguin fishing folk as slaves to sell in Europe.

Pedro Antonio Troglio (born July 28, 1965 in Luján, Buenos Aires) is a retired Argentine football player and manager.

During his career as a footballer, Troglio played for River Plate, as well as at the 1990 FIFA World Cup with the Argentina, where he scored a goal against the USSR.

During the final years of his career, Troglio played for Gimnasia y Esgrima de La Plata and Villa Dálmine (a fourth division team where he played alongside fellow veterans José Basualdo, Roberto Monserrat, Mario Pobersnik and Raúl "Pacha" Cardozo).

Troglio then went on to coach Godoy Cruz de Mendoza in Primera B Nacional but he left in the middle of the tournament to take on in March 2005 a demoralized Gimnasia and helped keep the team in the Primera. The next season he led them to 2nd place in the Apertura tournament, equalling their highest finish ever.

In June 2006 his #21 jersey was retired in Gimnasia y Esgrima de La Plata, being this the first number ever retired in an Argentine football club.

After the successful 2005 campaign, Gimnasia has performance declined markedly. Following a series of defeats in national and international competitions, including a 7:0 derby defeat to Estudiantes de La Plata, Troglio resigned on April 2007, and was temporarily replaced with former aide Ricardo Kuzemka. Nevertheless, Troglio's status with fans did not deteriorate strongly, with most press articles blaming club president Juan José Muñoz on the poor performances of the team.