Gavin Zosimus was a human nobleman who served as a representative of Tyre in the Amenthian Council. By his wife Melissa, he fathered William Zosimus and the future queen Laura Stirling. He is the maternal grandfather of Richard Stirling and Eleanor Stirling.
Gavin was born to Lord Hugh Zosimus and Lady Sibylla Andronikos in the city of Tyre. The Zosimus family was well known for their great wealth, gained from the vastly successful Tyran trade. Gavin was raised in the lap of luxury, living a sheltered life. He fell in love with Melissa, a lesser noblewoman whom his parents did not approve of. Eventually he became disillusioned with wealth and privilege, and at the age of nineteen he left his family's estate in search of meaning.
Gradually, Gavin ran out of money and was reduced to poverty and homelessness. Stranded in the city of Kronos, he slept on a street corner with rags as blankets. One day he overheard Vor preaching. His words so moved Gavin that he followed him out of the city and into the wilderness.
At the cave where Vor and his followers dwelled, the weak and dehydrated Gavin was taken in. The young man knelt before Vor, who asked him not to prostrate himself before the "mouthpiece", but only in the presence of Akhen. He led Gavin outside to witness the sunrise and prayed with him at the edge of a cliff. The young man would take to visiting the cliff every day, fasting and praying from sunrise to sunset.
Gavin converted to Vormundism and lived at the commune with the other early disciples. Many viewed him as a zealot and resented him for not taking up his fair share of the work. He would later attempt to amend this, spending less time praying and more time helping others. In particular he befriended the Exekian Kemet, who had been found the day before his arrival. Their friendship would last until Gavin's death.
Hymns to the Sun
After spending the day meditating at the cliff edge, Gavin headed back to the cave. Along the way he saw Daniel Zuse alone by the stream, and what he saw "disturbed" him. Along with the others in the cult, he knew of Daniel's dark past and out of concern he reported it to Vor.
After the murder of Lilia Merriman, Gavin was among those who went in search of Daniel. He and Athanasi carried the injured boy back to the cave. To Gavin's horror, it was revealed that Daniel had used Gavin's dagger, a Zosimus family heirloom that he had hidden in a tree stump, to castrate himself. Along with Sofia Belgrade, he tended to Daniel's wound, applying pressure to staunch the blood.
With Vor's return, Gavin found a solitary place beneath a willow, intending to pray, but found that he could not. His worries and anguish at all that had happened overwhelmed him. Athanasi talked to him, and Gavin expressed his belief that Lilia's murder must have happened for a reason, according to the divine plans of Akhen.
Shortly before the disbanding of the cult, Gavin discovered his father had died, leaving him his estate. Using the money he inherited, Gavin arranged for the safe passage of Kemet, Sofia Belgrade, and her son Vormundus to the Shadowlands. He escorted the trio to the Antoi himself. During the journey, he bore witness to Kemet and Sofia's marriage.
After returning to Tyre, he set himself up as a lord and appeared before the king.He eventually married Melissa and had two children with her, William and Laura. Due to the persecution of Vormunds, Gavin kept his religion a secret, but raised his children within the faith. He was favored by King Tristan, who described Gavin as "incorruptible".
When Tristan was mortally wounded by Insurrectionists during a tournament, Gavin defended the royal family in the chaos that followed. He recognized the leader of the attack as Drusus Rolfe and slew him. Gavin then followed his wife to a locked room, where she was tending to the wounded king along with Princess Helen. He was present to hear Tristan's last words, and the king gave Gavin his sword before dying.
After Aldous was crowned, Prince Claudius approached Gavin on the issue of challenging Aldous' right to the throne. Claudius and Gavin both agreed that Aldous was dangerous and unfit to be king, citing his call for the annihilation of the Exekians and purge of the Vormunds.
Gavin secretly arranged a meeting with Apollo, whom he had not seen in fifteen years, to discuss the possibility of an alliance between the New Exekian Empire and Claudius' forces to overthrow Aldous. Apollo declined the offer, but promised not to interfere.
In the War of Succession, Gavin sided with Claudius Stirling. After bidding goodbye to his family, Gavin joined the rebel army. During the Battle of Duat, he threw himself in the way of Aldous' sword, saving Claudius at the cost of his own life. After his death, Aldous took the Zosimus family captive and eventually married Gavin's daughter Laura.