He was not canonized since the process of canonization did not exist for nearly 1000 years after he died. He was declared a saint by the early Christian community based on his martyrdom. Pope St. Gelasius confirmed his sainthood a couple centuries later and fixed his feast day as February 14.
The date that st valentine was canonized is unknown. records do not date back that far; saints were also not formally canonized during this time. (i am writing about the st valentine in which valentine's day was named for)
St. Anselm was canonized in 1494.
No, Saint Patrick was never formally canonized
Saint Rose of Lima was the first saint from the Americas to be canonized,The first person born in the Americas to be canonized as a saint was St. Rose of Lima. The first person born in the United States to be canonized as a saint was St. Elizabeth Ann Seton.
St. Valentine was a Roman.
There is no canonized saint by the name of Daniella.
Yes, St. Odilia was canonized. She is known as a patron saint of the blind and visual difficulties.
St. Bridget of Sweden as canonized on October 7, 1391, by Pope Boniface IX. St. Bridget of Ireland is a precongregational saint and was never canonized.
He wasn't canonized, he was acclaimed a saint centuries before the modern system of canonization began. The feast of St. Valentine of February 14 was first established in 496 by Pope Gelasius I, who included Valentine among all those "... whose names are justly reverenced among men, but whose acts are known only to God." As Gelasius implies, nothing was yet known to him about his life.
Saint Valentine of Rome was never officially canonized. He died many years before the process of canonization existed. He was declared a saint by the early Church based on his life of heroic virtue and martyrdom.
If Valentine was a seriously sinful person he would not be a saint.
Valentine's Day, February 14, is the feast of St. Valentine, the patron saint of lovers.