|Allegiance|| House Tarbeck|
|Book(s)||The World of Ice & Fire (mentioned)|
During the Dance of the Dragons, Adrian took control of the Lannister host after Lord Jason Lannister fell in the Battle at the Red Fork. Adrian was eventually succeeded as the host's leader by Lord Lefford, but it is unknown if Adrian died in battle or if he was removed for other reasons.
- The World of Ice & Fire, The Westerlands: House Lannister Under the Dragons.