From Final Fantasy Wiki

Tietra Heiral
Sprite(s)
Japanese	ティータ・ハイラル
Romaji	Tīta Hairaru
Age	16
Gender	Female
Zodiac Sign	Aquarius
Voice actor(s)
Job Class	Delita's Sis, Commoner (War of the Lions)
Affiliation	None
Final Fantasy Tactics Character

"Tietra is Delita's younger sister. Both are children of a simple farmer who lived and worked on land by House Beoulve. Lord Barbaneth Beoulve assumed custody of both Tietra and Delita soon after their parents were taken by the Black Death. She attended the Eagrose Preparatory Akademy with Alma, but her peers would not accept her due to her roots."

—Personae description

Tietra Heiral, also known as Teta Hyral, is Delita's sister from Final Fantasy Tactics. She was taken in by Barbaneth Beoulve prior to his death, and is friends with his daughter Alma.

Story

Capture by the Corpse Brigade

During a Corpse Brigade assassination attempt on Barbaneth's eldest son Dycedarg Beoulve, Gragoroth Levigne attempt to seize Alma, but Dycedarg's brother Zalbaag intervened. He then seized Tietra and escaped with her, taking her to the Windmill Hut. Like Gragoroth, Wiegraf Folles mistakenly believed she was a Beoulve. Meanwhile, Zalbaag readied the Order of the Northern Sky Knights for an attack on the Corpse Brigade. Realizing that this would likely result in Tietra's death, Delita convinced his friend Ramza Beoulve to defy his two half-brothers and attempt a rescue.

Ramza and Delita made their way to the Lenalian Plateau, where they were confronted and attacked by Wiegraf's sister Milleuda. They killed her, and Wiegraf became furious, resolving to fight Ramza. He had Gragoroth take Tietra to Ziekden Fortress. Ramza and Delita defeated Wiegraf and moved on to Zeakden Fortress, but Zalbaag and Argath Thadalfus arrived first with the Northern Sky Knights. As Ramza and Delita arrived, they found a standoff: Gragoroth was holding Tietra hostage with Argath pointing his crossbow at the two.

Tietra's death.

Zalbaag gave an order and Argath fired two shots. The first struck Tietra, while the second hit Gragoroth. Wounded, Gragoroth released Tietra and crawled back inside the fort. Tietra called out to Delita and then collapsed. As Zalbaag left, Delita went into a rage, and with Ramza, he lunged forward to kill Argath. Argath fought back and was guarded by a number of Northern Sky Knights, but Delita and Ramza prevailed, killing him. As Delita went over to Tietra, Gragoroth lit explosives within the fort. Delita later remarks that Tietra "watched over [him] that day," although what he meant by that is unclear.

In Battle

Tietra "participates" in the battle at Ziekden Fortress, but she is unconscious for the entirety of the fight and cannot be revived, even by using a Phoenix Down or a White Mage's Raise spell.

Her Job class is titled "Commoner" ("Delita's Sis" in the original translation), and has a special command called "Magic" which contains two skills: Cure and Chant.