the Roman emperor, boasted that he would rebuild Jerusalem, but was mortally wounded by an arrow before the foundation was laid. Much has been made of this by early Christian writers, who dwell on the prohibition and curse pronounced against those who should attempt to rebuild the city, and the fate of Julian is pointed out as an example of Divine wrath against the impious disregarder of the threat.
Well pleased they look for Sion's coming state, Nor think of Julian's boast and Julian's fate.
St. Julian. Patron saint of travellers and of hospitality. Represented as accompanied by a stag in allusion to his early career as a hunter; and either receiving the poor and afflicted, or ferrying travellers across a river.
An househaldere and that a great, was he! Seynt Julian he was in his countre, His breed, his ale, was alway after oon [one pattern]; A bettre envyned man was nowhere noon.
St. Julian was he deemed. A great epicure. St. Julian was the epicurean of saints. (See above.)
Source: Dictionary of Phrase and Fable, E. Cobham Brewer, 1894
More on Julian from Infoplease: