Duke of Frías is a hereditary title created in 1492 by King Ferdinand II of Aragon. It became one of the most important titles in Spain.

The House of Velasco was one of the most powerful and influential noble Castilian families of the Middle Ages and the beginning of the Modern Era. Its original territories were situated around Burgos, Álava and eastern Cantabria. The founder of this lineage was Juan de Velasco (1368–1418), Lord High Chamberlain-Chancellor Camarero mayor to the kings of Castile. His elder son, Pedro Fernández de Velasco, became the first count of Haro.

When the first count died in the 1470s, he was succeeded by his eldest son Pedro Fernández de Velasco, 2nd Count of Haro. Pedro Fernández de Velasco became the hereditary constable of Castile, a title which previously had been only a life appointment. His son, Don Bernardino de Velasco, third Count of Haro and second hereditary constable of Castile, received the title of duke of Frías.

Gene Chandler (born Eugene Dixon, July 6, 1937) also known as "The Duke of Earl" or simply "The Duke", is an American R&B and soul singer-songwriter, producer and record executive. He is one of the leading exponents of the 1960s Chicago soul scene. He is best known for his million-selling hits, "Duke Of Earl," and "Groovy Situation," and his associations with the Dukays, the Impressions and Curtis Mayfield. A Grammy Hall Of Fame inductee, and winner of the National Association of Television and Radio Announcers Producer of the Year Award, and the Rhythm and Blues Foundation's Pioneer Award, and one of the few artists to chart hit records during the doo-wop, rhythm and blues, soul, and disco eras. Between 1961 and 1986 Chandler has had forty Pop and R&B chart hits.

Chandler attended Englewood High School on Chicago's south side. He began performing in the early 1950s with the Gaytones. In 1957, he joined a doo-wop group, The Dukays, with James Lowe, Shirley Jones, Earl Edwards and Ben Broyles, soon becoming their lead singer. After his draft into the US Army he returned to Chicago in 1960 and rejoined the Dukays.

Arturo Frias (born October 27, 1956) is a retired American boxer. He is a native of Montebello, California.

Frias began his professional boxing career on February 7, 1975, one month and a half after he had turned eighteen years old. He beat Alfredo Medrano by a six round decision in San Diego that night. He made his Los Angeles debut defeating Victor de La Cruz on March 17 of that year. On his third fight, Frias obtained a six round technical decision win over Eddie Murray, who quadrupled Frias' experience, having held eight fights before their bout, compared to Frias' two fights. Murray was undefeated before losing to Frias.

On Frias' eighth bout, he won once again by a technical decision, defeating Basilio Onate in two rounds, on September 2, 1976, also in Los Angeles. Frias' first knockout victory came on his tenth fight, when he defeated Canelo Salinas in the second round on December 16 of that year.

On February 26, 1981, Frias entered the WBA's top ten rankings at the Lightweight division, with a ten round decision win over Jaime Nava, in Los Angeles. On May 30, he held his first fight abroad, and suffered his first professional defeat, at the hands of former world champion Ernesto España, who outpointed Frias over ten rounds in Caracas, Venezuela.

Francisco Peña (Pegna) (born at Villarroya de los Pinares, near Saragossa, about 1540; died at Rome, in 1612) was a Spanish canon lawyer.

He devoted himself to the study of law at Valencia. Later Philip II of Spain appointed him auditor of the Rota for Spain.

He formed one of the commission charged with the preparation of the official edition of the Corpus juris canonici, published in 1582, and the anonymous notes appended to the edition of the Decretals are attributed to him. He was also concerned in the canonization of several saints: Didacus, Hyacinth, Raymond, Charles Borromeo, and Frances of Rome, publishing biographies of several of them.

His principal works are:

His "Decisiones sacræ Rotæ" were published by Urritigoiti (2 vols., Saragossa, 1648-50).

 This article incorporates text from a publication now in the public domain: Herbermann, Charles, ed. (1913). Catholic Encyclopedia. Robert Appleton Company.