Gutierre Rodríguez de Castro
Gutierre Rodríguez de Castro also known as Gutierre Ruiz de Castro and nicknamed el Escalabrado( died) was a Castilian nobleman, member of the House of Castro as the son of Rodrigo Fernández de Castro and his wife Elo Álvarez, daughter of Álvar Fáñez and his wife Mayor Pérez, daughter of Count Pedro Ansúrez.
Fernando Ruiz de Castro Andrade y Portugal
Fernando Ruiz de Castro Andrade y Portugal (14 December 1548 - 20 September 1601) was a Galician (Spanish) nobleman who was Viceroy of Naples from 1599 to 1601.
He was the 6th Count of Lemos, an old title from Galicia, centered in the lands around the town of Monforte de Lemos.
He was also 3rd Marquis of Sarria and a grandee of Spain.
He was born at Lerma.
Philosopher Tommaso Campanella was incarcerated during his tenure in Naples (1599).
He also ordered the construction of Royal Palace of Naples, designed by Domenico Fontana.
Fernando Ruiz de Castro died in Naples two years later.
His second son Francisco Ruiz de Castro succeeded him as viceroy of Naples.
Hector de Castro
Hector de Castro( 1849 – January 30, 1909) was an Ottoman born American businessman and diplomat.
Born in Constantinople, de Castro was educated in Paris and Vienna.
He emigrating to the United States and was naturalized in 1885.
He became Vice President of the American Cable Company.
Resigned from American Cable Company in 1890 to accept position as Secretary of the Intercontinental Railroad Commission In 1890, de Castro married Grace Aldrich of New York.
The couple had no children.
In 1897, de Castro was appointed United States General Consul in Rome.
Mrs. de Castro died in January 1908 and de Castro transferred to the General Consul position in Zurich in June the same year.
De Castro died from nephritis on January 30, 1909.
He was buried in Rome.
Blas Ruiz
Blas Ruiz de Hernán González or Blas Ruiz de Fernán González was an explorer from Ciudad Real, Spain.
Francisco Ruiz de Castro
Francisco Ruiz de Castro y de Sandoval- Rojas( May 1579- 1637), was a Spanish nobleman and politician the 8th count of Lemos.
Isabel Ponce de León
Isabel Ponce de León (died 1367) was a Spanish noblewoman from the Ponce de Leon family.
Her father was Pedro Ponce de León (Adelantado), lord of Cangas and Tineo, and her mother was Sancha Gil de Chacim.
She was the lady of Villanueva de los Infantes, Castrelo, and Espinosa.
She was a great-great-granddaughter of King Alfonso IX of León, and Pedro Ponce de Cabrera.
Pedro Fernández de Castro
Pedro Fernández de Castro( Algeciras, 1342), nicknamed" el de la Guerra"('of the War'), was a powerful Galician noble and military figure of the House of Castro, descended by illegitimate lines from the kings of Castile- Leon- Galicia.
Pedro Fernandez de Castro was Lord(" Señor") of Lemos and Sarria and served as" mayordomo mayor"( lord steward) of Alfonso XI of Castile," adelantado de la frontera"( governor) of Andalusia, Galicia and Murcia and" pertiguero mayor"( a title similar to the French Vidame) of the lands of Santiago.
He was the father of Fernando Ruiz de Castro(" toda la lealtad de España"), Queen Juana de Castro( wife of Peter of Castile), the controversial Inês de Castro( consort King Peter I of Portugal) and Álvaro Pires de Castro.
Noli de Castro
Manuel Leuterio de Castro Jr.( born July 6, 1949), better known as Noli de Castro or" Kabayan" Noli de Castro, is a Filipino journalist, politician and was elected as senator in 2001 and as the 12th Vice President of the Philippines from 2004 until 2010, under the presidency of Gloria Macapagal- Arroyo.
De Castro currently anchors his radio program" Kabayan" on DZMM and" TV Patrol".
He is one of the key television figures who are in favor of the Philippine Drug War of President Rodrigo Duterte.
Pedro Fernández de Castro (died 1214)
Pedro Fernández de Castro" the Castilian"( 18 August, 1214, Morocco) was a Castilian nobleman, son of Fernando Rodríguez de Castro and Estefanía Alfonso la Desdichada( Stephanie" The Unfortunate").
He inherited the" Infantazgo" of León from his parents and was" mayordomo mayor" of Fernando II and his son Alfonso IX of León.
Fernando Ruiz de Castro
Fernando Ruiz de Castro (d. Bayonne, 1377), was a Galician nobleman of the House of Castro and prominent military figure.
He was the third Count of Lemos, Trastámara and Sarria.
He is often referred to by the appellation Toda la lealtad de España ("All the loyalty of Spain"), from an inscription on his tomb in Bayonne.
He was the son of Pedro Fernández de Castro and Isabel Ponce de Leon.
He was the brother of Juana de Castro, wife of King Peter I of Castile and
half-brother of the controversial Inês de Castro (mistress of King Peter I of Portugal), and Álvaro Pires de Castro (leader of the Portuguese branch of the House of Castro).
Fernando Ruiz de Castro became a prominent figure in the circle of King Peter of Castile, and served as lord steward and standard-bearer of the realm.
During the Castilian Civil War, he was the leading partisan of Peter's camp, and continued fighting for the Petrist cause against the House of Trastámara even after the king's death in 1369.
His first marriage in 1354 to Juana Alfonso, illegitimate daughter of Alfonso XI of Castile, produced two children:
Divorced from his first wife, in 1367 he married Eleanor Enriquez, Lady of Melgar, widow of Alonso de Guzmán and daughter of Enrique Enriquez and his wife, Urraca Ponce de Leon.
This marriage produced no offspring.
From his mistress Mília Gonçalves, Lady of Assequins, he had one illegitimate son:

Question: Who is the maternal grandfather of Fernando Ruiz De Castro?