Krios Prime Krios Prime , or Krios , was the inhabited prime planet in the Kriosian system , in the Beta Quadrant . This system was near Starbase 117 and was the homeworld of the Kriosian s . This planet was located on the border of Federation space in the region between Sector s 21166 and 22079 . This planet was named after Krios , who ruled the ancient Kriosian Empire with his brother Valt . The brothers became divided over the love for a woman named Garuth so eventually their empire fell . Krios kidnapped Garuth from her homeworld Valt Minor and took her to Krios Prime , which started a centuries - long war between the two worlds . ( ) By the 22nd century , the Kriosians were under the rule of the Sovereign Dynasty of Krios Prime , a family known on hundreds of worlds . The royal guardsmen of the Dynasty were known as the Sovereign Guard . Their leader was known as the First Monarch , a post which Kaitaama ascended to in 2153 . ( ) By the mid - 24th century , after conquering Krios and suspending Kriosian sovereignty , the Klingon s established a colony on this planet . In 2367 , the Federation was accused by the planet ' s governor , Vagh , of aiding the planet ' s rebels who hoped to free the planet from Klingon rule . However , it was revealed that Klingon Ambassador , in an attempt to split the Klingon - Federation alliance , was in league with the Romulan s , who were secretly aiding the rebels with forged Starfleet weapons . ( ) In 2368 , Krios and Valt Minor took their first steps towards ending an ongoing war as Kamala , the first female metamorph born on Krios since the mid - 23rd century was delivered for marriage to Chancellor Alrik of Valt Minor . ( ) Background information . There is debate about whether the planet seen in and referenced in was the same planet seen in . There was no definitive statement in any episode to clarify their status . The name used in was the same as in , but no other similarities exist . The planet ' s color changed between episodes , which could indicate an unintentional production mistake or an intentional differentiation between two different planets ( see images ) . StarTrek . com stated explicitly that there were two different planets and / or systems that shared the same name Krios . In contrast , the only listed a single entry for Krios . The planet was classified as a class M planet , which – by the 24th century – was located in Klingon space . The Kriosian system ( " Encyclopedia " ( vol . 1 , p . 445 ) ) was named as a protectorate of the Klingon Empire . In , the matter was further complicated in a conversation between and Kaitaama . As they part ways , it was made clear that there was more than one planet with the name Krios . Tucker asks to visit ( simply ) Krios , causing Kaitaama to correct him by saying " Krios Prime . " The inclusion of this trivia by the writers was unnecessary for advancing the plot , but was very useful in discerning that there was more than one planet with this name . The , in its entry for " Krios Prime " , directs the reader to " Krios " , indicating the authors treat " Krios Prime " and " Krios " as interchangeable . , the primary of the Kriosian system , was located in the Beta Quadrant on a star chart seen in the episode .