Though the exact details are currently unknown, it seems very likely that "True" left the Wyvern Clan to join the Wyvern Splinter Clan when it was formed sometime between 988 and 994.  She somehow managed to escape whatever fate befell the rest of her clan along with a few other gargoyles and eventually joined the Lunfanan Cell of Demona's Clan.
After learning of the death of the Sruighlea Cell of the clan, "True" suggested holding a Wind Ceremony. Shortly thereafter, she went into hiding and was not present at the Battle of Rathveramoen due to her young age. ("Tyrants") 
"True" is not seen among the gargoyles who make up the Lunfanan Hill Cell of Demona's Clan in 1020, so her fate is unknown. She may have died by that time or perhaps was spending more of her time in another Cell.
Unknown to all, and of no consequence, "True" was the third biological child of Hudson and "Verity".  This makes Hyppolyta and Broadway her older biological siblings.  She inherited characteristics from both her biological parents. From her father, she inherited her tan skin coloring and her white hair. "True" also sports a small crest with points along the top of her head and wings with two digits at the apex. She wears a simple blue dress. Demona has called her "Little One".
- "Tyrants" (First Appearance)
First revealed online as Hudson's youngest biological child in 2000, the name "True" has been used in past descriptions by Greg Weisman and was later used to identify her in the script for "Tyrants".  In the context of the story, she does not have a name. Giving her a name in the script simply made it easier to quickly explain which gargoyle she is and saved Greg Weisman from having to type something like "Hudson's Surviving Biological Daughter" over and over again.