Haikon is the current leader of the Sodan and is therefore named Lord.
Biography
2005
He was the one who decreed that Lt. Colonel Cameron Mitchell will answer for his crimes (the spilling of the blood of a Sodan warrior) by way of Kel shak lo. He has led his people for more that a hundred years, and after learning of the Ori, led his people to convert to Origin. (SG1: "Babylon")
2006
Eventually, however, Haikon and the others realized that the Ori were no better than the Goa'uld. He renounced Origin, and aided the Tau'ri in their efforts to capture the Prior Damaris, so that they might manufacture a cure to the Ori plague. (SG1: "The Fourth Horseman, Part 2")
Later, another Prior drove the Sodan Volnek mad, causing him to go on a rampage and killing all but Haikon. (SG1: " Arthur's Mantle"). After recovering, it is likely that Haikon found sanctuary with the Free Jaffa Nation.