Trillian's parents died when she was a young girl; having no immediate family she was raised by her uncle Andrew Steiner along with her cousin Melissa. Unlike her relatives who showed a negative attitude towards Devlin Stone and his Republic, Trillian carried on her parent's positive attitude towards the young new nation.
Due to how close Trillian and Melissa were growing up, when the throne of the Lyran Commonwealth was inherited by Melissa, she quickly made Trillian her chief diplomat. Trillian's task transformed into the troubleshooter who traveled from one corner of the Lyran realm to the other in order to appease lesser nobles and to put out any political fires that may have started. Her travels increased exponentially once the HPG network crashed.
After the fall of interstellar communication, Trillian was able to accomplish three tasks that put her into the spotlight. First, in 3134 she met with her distant cousin, Jasek Kelswa-Steiner, and was able to give him military support for the defense of Skye against the Clan Jade Falcon desant into the Republic's Prefecture IX. Second, she was the messenger for Melissa Steiner to Clan Wolf-in-Exile in order to get the services of Clan Wolf in 3136. Third, she was a part of Operation HAMMERFALL when she was able to broker the surrender of the Duchy of Tamarind-Abbey.
Growing up outside the line of succession for the throne, Trillian believed that she would never have to worry about ruling. That changed when her cousin made it clear that she wanted Trillian to be the next Archon of the Commonwealth. Trillian attained the title when her cousin sacrificed her life to ensure that Trillian and rest of the Lyran leadership were able to escape during the Clan Wolf invasion of Tharkad.
Since her taking of the throne, Trillian has ruffled the feathers of the Lyran Commonwealth Armed Forces commanding officers with her decisions of amputating parts of the empire in order to ensure the survival of the Commonwealth.
|Archon of the Lyran Commonwealth
| Succeeded by|
- Blood of the Isle, p. 167
- Era Report: 3145, p. 97-98, "Trillian Steiner profile"
- Era Report: 3145, p. 98, "Melissa Steiner profile"