Corven was a member of the City Watch of Korvosa. During his tenure as a guardsman, he dealt with thieves, smugglers, murderers, rapists, and simple drunkards with the same happy-go-lucky style that made him well known (it didn't hurt his reputation that he was one of the only halflings who served in the watch).
To the professional drunkards of Korvosa, Corven was a terrifying legend: Though he is a cleric of Cayden, Corven is something of a teetotaler, and he does not see those who overindulge "in Cayden's name" as a laughing matter.
What really made him famous, however, was the time that Ole Smitty, one of the biggest men in Old Korvosa, got smammered and decided he wanted to pick a fight "with the little guy". When Corven showed up, he assessed the situation, asked Smitty to go home and sleep it off, but Smitty was having none of that. After trying words for several minutes, Corven sighed, cast a spell and then touched Smitty. As he did, he said "You will never again know the face of Cayden until you live your life for others alone." As the spell took hold, Smitty's eyes widened: his completely sober eyes. Stomping to a nearby table, he downed a pitcher of ale, but it was to no avail; he could not get drunk. It quickly got around that if you love the drink, you did not quarrel with Corven.
For his part, Corven allowed this rumor to propegate, as it made his job much easier.
Corven's life was going well, right up to the point that most of the watch were given their walking papers after the Blood Veil disaster; for his part, during the crisis he spent most of his days cleansing the inflicted victims of the disease.
As Corven's watch (and home) were in Old Korvosa, he tried to argue against cutting it off from the rest of the city, but to no avail. Now, jobless and frustrated, Croven retired to his small house to try and determine where to go with his life.
He spent several days in prayer, until he received a vision showing him that he should go to the village of Harse and find the Heroes of Korvosa there.
Packing his belongings, he left that night...