Here's what the lines mean:
A blue line denotes siblings (brothers and sisters).
A green line denotes marriage.
A red line denotes parent and child. A line can go from one or two parents to one or more children.
A gray line denotes adoptive parent and adopted child.
Names in red have died before the scope of the game.
King Denamunda was the reigning monarch of Ivalice when the Fifty Year War with Ordalia broke out. He died from illness, and his son Denamunda II carried on the war. Denamunda II also died (believed to be assassinated), and the kingdom fell into Ondoria's hands. He was no leader, however, and his wife Louveria took over the ruling of Ivalice. It's rumored that Ondoria's incompetence is what forced Ivalice to surrender to Ordalia. After Ondoria's two sons died, he took his much younger sister Ovelia as his daughter. However, the political situation became chaotic when another son, Orinus, was born to Ondoria and Louveria. It was understood that he would be the next monarch. Battle between Prince Larg, Louveria's brother, and Prince Goltanna, Ondoria's cousin, broke out as to who would be the boy's guardian and therefore rule the country in his stead until he came of age. Larg won, but Goltanna still contested his right to the throne. Larg's "trophy ruler" - the person who allowed his claim to continue - was Orinus, while Goltanna's trophy ruler was Ovelia. Larg's knight force is called the Order of the Northern Sky , and Goltanna's is the Order of the Southern Sky .
The Beoulves are a wealthy and noble family with strong ties to the monarchy and especially with Prince Larg. Barbaneth Beoulve was the leader of Larg's Order of the Northern Sky Knights until he died. His eldest son Dycedarg, by his father's wishes, gave the office of Order of the Northern Sky leader to Zalbaag. However, Dycedarg was always the closest to Larg's ear. Their younger brother Ramza and their sister Alma were born from a different mother. Ramza had strange ideals and never really attained the honor given his elder brothers. Also noteworthy is the near-adoption of Delita Heiral and his sister Teitra, two poor orphans whom Barbaneth allowed to live in Eagrose Castle. Delita became fast friends with Ramza, and Teitra with Alma; both sets of youths attended the same schools: Ramza and Delita in Gariland Military Academy, and Alma and Teitra in Eagrose Aristocratic School.
Wiegraf Folles, the leader of the Corpse Brigade, is brother to Milleuda Folles. Folmarv Tengille, leader of the Knights Templar, is father to Isilud (also a Templar) and Meliadoul, his daughter. Grand Duke Gerrith Barrington adopted the two orphans Marach and Rapha Galthena because of their abilities as Sky and Netherseers. Besrudio Bunansa, who works in the Clockwork City of Goug, is father to Mustadio the engineer. Finally, Cidolfus Orlandeau, also known as T.G. Cid, adopted the astronomer Orran Durai. Orran's distant descendant is Alazlam J.D.
Names in red have died or left the organization before the game begins.
Names in blue join the group during the scope of the game.
(In other words, everyone in black is there at the beginning of the game.)
Bestrada Larg is the absolute leader of the Order of the Northern Sky , but he delegates all responsibility to the leader of the Order of the Northern Sky . This was Barbaneth Beoulve, but after he died at the end of the Fifty Year War, the honor was given to his son Zalbaag. Ramza, Delita, and Argath were all cadets in the Order of the Northern Sky until the famous battle at Ziekden Fortress where both Argath and Teitra, Delita's sister, were killed. Delita continues in the Order of the Northern Sky Knights, but betrays Prince Larg's scheming orders soon after. Ramza, however, quit the Order of the Northern Sky , unsure of the plans of his brothers and their compatriots, changed his last name to Ruglia, and joined Gaffgarion's mercenary force; however, he quit that one also. Goltanna has the same relationship to the Order of the Southern Sky as Larg does to the Order of the Northern Sky . His Order of the Southern Sky leader, Orlandeau (also known as Thunder God Cid), served him through the entire Fifty Year War and halfway through the War of the Lions, where he was deposed due to trumped-up charges which were the brainchild of Delita. Delita himself took over Orlandeau's job.
The Mullonde sect of the Glabados Church is the catalyst of the War of the Lions; their quest for the Holy Stones and their unholy pact with the Lucavi demons spark innumerable traitorous actions among everyone in Ivalice. The head of the church is Marcel Funebris; his second in command is Cardinal Delacroix, whose jurisdiction is over Lionel Castle. A high-ranking priest is Simon Penn-Lachish, who has jurisdiction over Orbonne Monastery. They also control the Pagan Examiners, whose job it is to seek out heretics. Zalmour is a Pagan Examiner. (Delacroix is also a Pagan Examiner but has other duties as well.) As well, they command the Knights Templar; they're the Church's mercenary force. Balamaf, supposedly supposed to protect the person of the High Priest Funebris. Valmafra Lenande is a sorcerer who is sent by the church to watch over Delita. (Priest Bremondt figures in the side storyline of Beowulf and Reis, but does not appear in the game.)
The Corpse Brigade, like their predecessors the Knights of Death, are an anti-aristocratic terrorist group. Its leader is Wiegraf Folles. The second-in-command is Gustav Margriff, who kidnaps the Marquis Elmdore by the order of Dycedarg and Larg; Wiegraf kills him for it. Also in the Corpse Brigade are Wiegraf's sister Milleuda, who dies by Ramza's hand in a very sad misunderstanding, and Gragoroth Levigne, who carries out a botched assassination attempt at Dycedarg and instead captures Teitra as a hostage. He dies, and takes Teitra with him, at Ziekden Fortress.
Although officially under command of the Church, Folmarv basically runs the Knights Templar as he sees fit. Members of his ruthless force include his son Isilud, his daughter Meliadoul, the engineer Barich, the sorcerer Cletienne, and the knight Loffrey. Wiegraf of the Corpse Brigade joins the Knights Templar after the Corpse Brigade are destroyed. The head of the Lionel segment of the Knights Templar during the Fifty Year War was Beowulf Cadmus, but he quit the Knights after an incident involving a jealous priest and a lost loved one.
The leader of the Lucavi is Ultima, whose alterego is St. Ajora. Hashmal is Altima's second-in-command, who leads the Lucavi in his absence. The rest of the Lucavi are under Hashmal, with the exception of Elidibus, who seems to be his own master. Each Lucavi has a human host (second column) and is assosciated with a particular Zodiac/Holy Stone (third column).