Successful in this endeavor, Gillian embraced the Templar Order, easily becoming wealthy. As Fillan disliked her decision upon joining, the young man went on his own way. Unhindered, Gillian was able to gain the favors of the most influential politicians and learn the best guarded plans and secrets of the states.
In 2012, her genetic memories were used as an Animi Avatar by the entertainment branch of the Templar company Abstergo Industries, to influence the general public via the Animus games console, under the title of the Lady Maverick.
- In Erudito's version of her Abstergo file, it makes mention that she "sold her brother for a can of beans." Whether this was Erudito's attempt at a practical joke, or another example of the ruthless personality she possessed, remains to be known.