Valentine was declared a saint by early Christians long before the canonization process was instituted in the 12th century. However, Pope Gelasius I (492-496) recognized his martyrdom and saintliness.
Joshua is an Old Testament patriarch and not a New Testament saint.
Pope St. Martin is a saint but not a patron saint.
Therese of Lisieux was canonized on May 17, 1925, by Pope Pius XI.
The remains of Saint Valentine were removed from the Catacombs of Saint Valentine in Rome and placed in a basilica in Terni, Italy in 273 AD. Some relics attributed to Saint Valentine were also claimed by the Franciscan church in the Church of St. Praxedes in Rome.
St. Jude was not declared a saint by a pope. The canonization process did not exist at the time. he was declared a saint by the early Church because of his martyrdom.
Saint Patrick was never a pope.
He would have been appointed to the position by the pope. In the case of Saint Nicholas, that was probably Pope Saint Sylvester I.
Boniface is a saint but not a patron saint.
He declared St. Valentine to be a saint and his feast day to be February 14.
Pope Saint Sixtus I - April 6 Pope Saint Sixtus II - August 7 Pope Saint Sixtus III - March 28
Pope St. Nicholas I is not a patron saint.
Yes, Saint Peter was the pope at the time.