Fire Emblem: Seisen no Keifu (ファイアーエムブレム　聖戦の系譜, Faiā Emuburemu: Seisen no Keifu^?, Fire Emblem: Genealogy of the Holy War) is a Japanese Super Famicom tactical role-playing game developed by Intelligent Systems and published by Nintendo. It was released on May 14, 1996 in Japan. It is the fourth title in the Fire Emblem series, the second Fire Emblem title for the Super Famicom and was the last game produced by Gunpei Yokoi. The game has widely received recognition outside Japan through imports or console emulation. It was unofficially translated into English through emulation. It was released on the Japanese Virtual Console service on January 30, 2007.

Fire Emblem: Seisen no Keifu takes place in the continent of Jugdral (pronounced YOOG-drahl and based on the Norse mythological name Yggdrasil). It is composed of eight kingdoms: the Kingdom of Grandbell, the Kingdom of Verdane, Miletos District, the Manster District, the Kingdom of Thracia, the Lords' Dominion of Agustria, the Kingdom of Silesia, Yied Desert, and the Kingdom of Isaac. They were founded by the 12 crusaders: Baldo, Ulir, Tordo, Fala, Neir, Edda, Narga, Noba, Dain, Hezul, Sety, and Odo.

• Grandbell was founded by Saint Heim. Its royal family resides in Barhara castle. In addition to Barhara castle, Grandbell has six dukedoms: Chalphy, Jungby, Velthomer, Freege, Dozel, and Edda. This country also has the highest number of descendants of the crusaders, contributing to over half of the crusaders(Heim, Fala, Baldo, Blagi, Tordo, Ulir and Neir). The Fire Emblem does not appear in Fire Emblem: Seisen no Keifu, but it is mentioned as the family crest of the Velthomer house by the person succeeding it.^[2]

• Verdane is the southwesternmost country in Jugdral. It is Jugdral's land of forests and wildlife. It has absolutely no ties with Grandbell. It is ruled by kings without Holy Crusader heritage. Before Gran 757, when Sandima took over, it was ruled by King Bantou. Jamka, a recruitable archer character in Sigurd's tale, is from Verdane. Edin is taken by Gandolf to Marpha Castle, Verdane, in the Prologue. Princess Ayra of Isaac fled with her nephew Shanan to Verdane to escape the Isaacian-Grandbellian war. She then had no choice but to work as a mercenary for Genoa Castle. Chapter 1 takes place here.

• Miletos is the southernmost country of Jugdral. It is the country where trade routes to Jugdral meet. Chapter 10 takes place here. Chalphy dukedom of Grandbell is located near Miletos.

• Occupying the northern half of the Thracian Peninsula, the Manster District is a confederation of several small holdings to withstand Thracia's invasions. It was founded by holy crusader Noba, the younger sister of Dain. Traditionally, most of the Manster District's military power has come from Lenster's lance knight brigade (Lanzenritter), though the other holdings have separate militaries. The Manster District consists of Melgen, Lenster, Alster, Conote, and Manster. At the onset of the game, the king of Lenster is Prince Cuan's father King Calf.

• Thracia is a mountainous nation occupying the southern half of the Thracian Peninsula, south of the Manster District. It was founded by holy crusader Dain, the older brother of Noba. Because of the region's rocky soil and hilly terrain, food is scarce and the people are often hungry. However, Thracia is the nation that ridable-sized dragons are native to. Thracian knights who ride the dragons are famous as mercenaries throughout Jugdral, and contribute substantially to the country's income. Thracians have tried many times over Jugdral's history to conquer the fertile Manster District in order to provide food for their families, but all of the major assaults have been repelled by Lenster's lance knight brigade, colloquially known as the "Wall of Manster", especially by the Thracians. At the onset of the game, Trabant is king of Thracia.

• Agustria is the home of Eltshan's family. Crusader Hezul helped found Agustria. Agustria is located in the west side of Jugdral and north of Verdane. It is the largest country in Jugdral. Chapters 2 and 3 of the game take place here. Celice was born here between these chapters.

• Silesia is located north of Yied Desert and west of Isaac. It is the home of Levin and Fury. It was founded by Sety the Wind Crusader. It is the coldest country in Jugdral. Throughout Jugdral history, it has often been a neutral country. It has five castles: Silesia, Sailane, Thove, Zaxon, and Lubeck. Chapter 4 and part of Chapter 5 take place here.

• Yied Desert is the land of outcasts in Jugdral. It is also the center of the Loput sect. The heat in Yied Desert is dangerous, and the Dark Mages have unusual techniques to distract everyone trying to cross the desert. After the Isaacian-Grandbellian war, Isaac's Balmunk was taken to Yied Shrine. During Chapter 5, Cuan and Ethlin are killed by Trabant when marching across Yied Desert. Part of Chapter 5 and most of Chapter 7 take place here. During Chapter 7, Patty sneaks into Yied Shrine, snatches the Balmunk, and gives it to Shanan.

• The Kingdom of Isaac is the northeasternmost country in Jugdral and was founded by Odo in Gran 648. It is the home of Ayra, Shanan, Lakche, and Skasaher. Grandbell invades Isaac around the beginning of the game. Isaac is known for being the land of Swordmasters. In Isaac, women are treated differently from other countries in Jugdral. Isaac is second to Manster in fertility, having many flowers and bushes and some animals. It has five castles: Isaac, Sophara, Tilnagogue, Ganeishire, and Rivough. At the onset of the game, Grandbell invades Isaac, blaming Isaacian royalty, who is not actually responsible, for the siege on Darna castle in Yied Desert. Mariccle is the king of Isaac. Mariccle dies at the time of Chapter 2 of the game. In the meantime of Chapter 5, after the Isaacian-Grandbellian war, Isaac is taken over by Dozel nobility. With the exception of Rivough Castle, Isaac is the only country in Jugdral that did not participate in child hunts in the days of Alvis's Grandbellian Empire. Chapter 6 takes place here. Celice was raised here. According to Celice, the Isaacians suffered under Dozel nobility rule. The Isaacians detest the Grandbellian Empire for meddling in the affairs of Isaacian royalty and for having extreme political and military power.