Born in 858, the young Deryni trains for the life of a religious knight from childhood, eventually being ordained a priest in 877 and joining the Michaelines in 879.
Cullen enjoys a close friendship with Grand Master Jebediah d'Alcara, and he serves as a mentor to Father Joram MacRorie.
Cullen commands the Michaeline forces during the Battle of Iomaire, but he is killed in personal combat by Ariella, although he uses the last of his strength to slay the princess.
The Deryni knight is elected Grand Master of the order in 902, and he enjoys a close friendship with the Vicar General, Father Alister Cullen.
After Cinhil's death, Jebediah is dismissed from his royal appointments, and he spends much of his time organizing the covert movement of the Michaeline order out of Gwynedd.
A year later, he is present when the lords of state murder Javan and destroy Revan's baptizer cult, but he once again manages to escape the violence.
Queron's exact date of death is unknown, but his detailed autobiography, the Annales Queroni, is discovered by Dowager Queen Jehana in the secret library of Rhemuth Castle in 1128.
When Alister Cullen is elected Archbishop of Valoret and Primate of All Gwynedd, Hubert and the other Regents launch a violent wave of anti-Deryni persecutions.
Hubert eventually conceives and executes a plot against Javan in 921, successfully murdering the king and placing Prince Rhys Michael Haldane upon the throne.
After Cinhil's death in 917, Manfred is appointed to the Royal Council of King Alroy, and is later created Earl of Culdi after the MacRorie family is attainted.
The following year, Manfred replaces Duke Ewan I MacEwan of Claibourne as a Lord Regent and Earl Marshal of Gwynedd, but he resigns the latter office in 919.
After the king's funeral, during a confrontation with the newly appointed Regents, Manfred is slain by Earl Rhun von Horthy of Sheele, who is acting under a mental compulsion placed by Rhys Michael before his death.
He accompanies his aunt, Lady Evaine MacRorie Thuryn on her journey to safety later that year, and he is inducted into the Camberian Council early in 918.
In 928, Ansel and Jesse covertly monitor the royal expedition into Eastmarch, but they are unable to provide any direct assistance to King Rhys Michael.
Camber Kyriell MacRorie is the seventh Earl of Culdi, a Gwyneddan noble who plays a pivotal role in the Haldane Restoration of 904.
However, Tavis is attacked by a group of rogue Deryni in May, and they cut off his right hand as punishment for allegedly assisting the human-controlled court.
Shortly thereafter, as the Regents of King Alroy unleash a violent wave of anti-Deryni persecutions, Tavis is finally forced to leave Javan and join with the outlawed Deryni rebels.
In an effort to protect Deryni from the persecutions, Tavis covertly blocks their powers while Revan baptizes them, making the process appear to be a divine miracle.
Revan is a thirteen-year-old peasant boy at the time of his first appearance in Camber of Culdi, a carpenter's apprentice who is taken prisoner by King Imre Furstán-Festil after the murder of a Deryni lord.
Revan eventually becomes a trusted and valued member of the Thuryn household, serving as both a confidential clerk and a tutor to Evaine's children.
Known as "Rhun the Ruthless", he spends the next several years as one of the most prominent men in the kingdom, brutally wielding his authority to crush Deryni and further secure his power.
Still under Rhys Michael's mental compulsions, Rhun savagely murders Manfred and seizes the four-year-old King Owain Haldane.
Although he is occasionally described as being the most decent of the five Regents in the novels, Tammaron firmly supports all efforts to persecute Deryni and solidify the power of his colleagues over the following years.
In 1128, Arilan travels with Kelson to Torenth, where he and other members of the Camberian Council attempt to unravel the political plots surrounding the Torenthi court.
Following the formal enthronement of King Liam Lajos, Arilan serves as Gwynedd's primary ambassador to the Torenthi court.
Derry is knighted by King Brion Haldane shortly after his eighteenth birthday in 1115, and he soon becomes a trusted military aide the service of Duke Alaric Morgan of Corwyn.
Although Morag is later allowed to return to Torenth, Kelson keeps Liam in Gwynedd for the next four years, intending to both teach the young king the skills of statecraft he will eventually need and to expose him to Gwyneddan culture in an attempt to end the enmity between the two lands.
During his early ecclesiastical career, he earns a reputation for his fanatical hatred of Deryni, and he is rumored to allow violent and bloody persecutions to continue under his authority.
In late 1123, Loris manages to escape his captivity and joins forces with the Princess Caitrin Quinnell, the Mearan Pretender, in a joint effort to defeat Kelson.
R'thana Ayesha Kamila bint Hakim ar-Rafiq is born a royal Deryni princess in 1107, the daughter of the Sovereign Prince of Nur Hallaj.