Koida 'Vadam was a Sangheili, and a member of the Vadam family and became one of their elders. He did not join in military service and so was not permitted to add the "-ee" suffix in his name.[1] He sent several assassins attempting to kill Kaidon Thel 'Vadamee, but they failed. He ultimately lost his life when he attempted to kill Thel himself.[2] Thel cut Koida's head off with an Energy Sword. The Kaidon then gave Koida's lineage the chance to leave or be killed.


  1. Halo: The Cole Protocol
  2. Halo: The Cole Protocol, page 92
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