Agrippinus of Naples
Saint Agrippinus( Arpinus) of Naples( 3rd century) was a bishop of Naples and is venerated in that city as a saint.
According to tradition, Agrippinus was the sixth bishop of Naples.
He lived at the end of the 3rd century, and seems not to have been a martyr.
Sergius II of Naples
Sergius II was Duke of Naples from 870 to 877.
He continued the policies of his father, Gregory III, and grandfather, Sergius I.
He maintained good relations with the Franks or the Byzantines only as it suited Neapolitan interests.
He was briefly prefect of Amalfi for thirteen days in 866, following the prefect Maurus.
In January 870, his father fell seriously ill and left him the government.
Gregory died in March.
It is written that Sergius made Naples "into another Palermo, another Africa," by his friendly relations with the Aghlabids.
For this, he earned the excommunication of Pope John VIII.
He also earned the opposition of his uncle, Bishop Athanasius I and exiled him to an island.
Sergius was blinded and deposed by his brother Athanasius II, Bishop of Naples, who delivered him to Rome.
His son Gregory IV eventually succeeded to the ducal throne.
Margaret of Durazzo
Margaret of Durazzo (28 July 1347 – 6 August 1412) was Queen of Naples and Hungary and Princess of Achaea as the spouse of Charles III of Naples.
She was regent of Naples from 1386 until 1393 during the minority of her son Ladislaus of Naples.
Marinus I of Naples
Marinus I( died 928) was the Duke of Naples from 919 to his death.
He was the second son of Gregory IV and successor of his brother John II.
The" Chronicon ducum et principum Beneventi, Salerni, et Capuae et ducum Neapolis" calls him Marianus.
According to that document, he reigned eight years, nine months, and fifteen days.
Marinus was succeeded by his son John III.
He left a daughter Orania who married Docibilis II of Gaeta and brought him Cimiterio and Liburia as a dowry.
Joanna of Naples (1478–1518)
Joanna of Naples( 15 April 1479 – 27 August 1518) was the Queen consort of Naples by marriage to Ferdinand II of Naples.
After the death of her spouse, she was for a short while considered as his successor.
Patriarch Gregory IV of Alexandria
Gregory IV served as Greek Patriarch of Alexandria between 1398 and 1412.
Gregory IV of Constantinople
Gregory IV was Ecumenical Patriarch of Constantinople for two months in 1623.
Juliet Elu
Juliet Elu is the Vice Chancellor of Gregory University in Nigeria.
Gregory IV of Naples
Gregory IV (died 915) was the firstborn son of Duke Sergius II of Naples and successor of his paternal uncle, Bishop Athanasius, in 898, when he was elected "dux", or "magister militum", unanimously by the aristocracy.
His other paternal uncle, Stephen, succeeded Athanasius as bishop.
According to the "Chronicon ducum et principum Beneventi, Salerni, et Capuae
et ducum Neapolis"
, he reigned for sixteen years and eight months.
The Mezzogiorno in his time was under constant Saracen assaults.
Around 900, Gregoy destroyed the "castrum Lucullanum", a Neapolitan fortress just outside the city, to prevent the Moslems from taking it as a base.
Otherwise, he reinforced the city walls and stored supplies to ensure survival in the event of a long siege.
According to the much later chronicler Leo of Ostia, he signed a pact with the prince of Benevento and Capua, Atenulf, and the Amalfitans and attacked and defeated the Saracens.
On 2 July 911, he signed another "pactum" with Atenulf's sons, the coprinces Atenulf II and Landulf I, whereby they shared the disputed territory of Liburia.
In that same year, he participated in allied attacks on the Saracen fortress on the Garigliano.
In 915, he joined the massive army of south Italian princes and the Byzantine "strategos" Nicholas Picingli and received the imperial title of "patricius".
The army met with the forces of the central peninsula under Alberic I of Spoleto and Pope John X.
Together they led another assault on the encampment of the Garigliano.
In the ensuing battle, it was on the misplaced (or mendacious) advice of Gregory that they charged the Saracen line.
Nevertheless, it was a success and the enemy fled into the forest to be hunted down and slaughtered.
Gregory did not long live to enjoy the fruits of victory, he died within months, late in the year 915, and was succeeded by his firstborn son, John II, who had been present at the battle.
In 907 Gregory made a donation to the urban church of Saints Severinus and Sossus in Naples, which his forefathers had possibly founded.
Nonna of Nazianzus
Saint Nonna of Nazianzus was the wife of Gregory of Nazianzus the Elder, and the mother of Gregory the Theologian, Caesarius, and Gorgonia.
She lived in Cappadocia, a province of the Roman Empire in present- day central Turkey.

Question: Where did Gregory Iv Of Naples's father die?
Answer: Rome