Narancia Ghirga's mother is only mentioned in a flashback, where it is stated that she died in 1994 from an eye infection when Narancia was only 10 years old. Despite the fact that Narancia's own eye infection was a mere coincidence after being beaten up by police officers, all of his friends were convinced that it was contagious and that he got it from his mother. Narancia himself began to believe the rumor and was frightened that he would die at any time, all alone. The anime shows her date of birth and date of death to be respectively September 21, 1958 and January 16, 1994.

The fifth story arc of the long-running JoJo's Bizarre Adventure series. 
Giorno Giovanna, a young man living in Naples, has the blood of DIO -- the eternal enemy of the Joestar clan -- running in his veins. Giorno becomes a delinquent due to being persecuted since childhood. However, he's led back onto the right path thanks to a gangster who saved him and taught him to believe in others. Bizarrely enough, this gang of people who didn't forget honor, gratitude, and respect made him reform. This is how Giorno came to admire gangsters. In the backstreets of Italy, Giorno causes trouble alongside his gang "Passione," and ends up being targeted... 
(Source: Anime News Network)

Golden Wind is here! The highly-acclaimed fifth arc of Hirohiko Araki’s JoJo’s Bizarre Adventure shifts the action from Japan to Italy, as Koichi Hirose heads to Europe to find an aspiring gangster named Giorno Giovanna, the secret son of Dio Brando, scourge of the Joestar family. Organized crime meets family drama and unbelievable enemy Stands in JoJo’s Bizarre Adventure: Part 5—Golden Wind! 
(Source: Viz Media)

Mela Ghirga