|Book(s)||Fire and Blood (mentioned)|
Julian fought for the greens during the Dance of the Dragons. After King's Landing was taken back by the greens in 130 AC, Ser Tyland Lannister, Ser Marston Waters and Ser Julian were sent to the Free Cities of Pentos, Tyrosh, and Myr to hire sellswords to fight for King Aegon II Targaryen.
By the time Ser Tyland's party returned empty handed to King's Landing, Aegon II was dead.
- Fire & Blood, The Dying of the Dragons - The Short, Sad Reign of Aegon II.