|Died|| 4460 AR (actual)|
4483 AR (disguised)
Source: Guide to Korvosa, pg(s). 40
Facing poverty, Arkona borrowed money from House Jeggare to fund a last-ditch expedition to Vudra. He and his brother Jenkson purchased the caravel Reprieve, outfitted it with a skeleton crew, and in a troubled voyage arrived to Sihadrimon in the summer of 4460 AR to trade in Vudran luxuries.
Their journey back to Korvosa, while relatively swift and financially successful, left them changed; unbeknownst to those around them, Garath and Jenkson had been replaced by the rakshasas Mapras and Dandra, who killed the Arkonas in Sihadriman and took on their likenesses as a disguise.