Eulalia of Mérida was a Roman Christian child martyred in Emerita in Lusitania (modern Mérida in Spain) during the persecution of Christians in the reign of emperor Diocletian and his co-emperor Maximian. Others place her death at the time of Trajan Decius (AD 249-51). There is some dispute as to whether Saint Eulalia of Barcelona, whose story is similar, is the same person.
Eulalia was a devout Christian virgin, aged 12–14, whose mother sequestered her in the countryside in AD 304 because all citizens were required to avow faith in the Roman gods. Eulalia ran away to the law court of the governor Dacian at Emerita, professed herself a Christian, insulted the pagan gods and emperor Maximian, and challenged the authorities to martyr her. The judge's attempts at flattery and bribery failed. According to the Spanish-Roman poet Prudentius of the fifth century, she said:
She was then stripped by the soldiers, tortured with hooks and torches, and burnt at the stake, suffocating from smoke inhalation. She taunted her torturers all the while, and as she expired a dove flew out of her mouth. This frightened away the soldiers and allowed a miraculous snow to cover her nakedness, its whiteness indicating her sainthood.
A shrine over her tomb was soon erected. Veneration of Eulalia was already popular with Christians by AD 350; Prudentius' poem increased her fame and relics from her were distributed through Iberia. Bishop Fidelis of Merida rebuilt a basilica in her honour around AD 560. Her shrine was the most popular in Visigothic Spain. In c. 780 her body was transferred to Oviedo by King Silo. It lies in a coffin of Arab silver donated by Afonso VI in 1075. In 1639, she was made patron saint of Oviedo. She appears in Martyrs Mirror: http://www.homecomers.org/mirror/martyrs021.htm