Saints Centola and Helen were, according to Christian

Christian

A Christian is a person who adheres to Christianity, an Abrahamic, monotheistic religion based on the life and teachings of Jesus of Nazareth as recorded in the Canonical gospels and the letters of the New Testament...

 tradition, two women who were martyred at Burgos

Burgos

Burgos is a city of northern Spain, historic capital of Castile. It is situated at the edge of the central plateau, with about 178,966 inhabitants in the city proper and another 20,000 in its suburbs. It is the capital of the province of Burgos, in the autonomous community of Castile and León...

 in 304 AD during the persecution of Christians by Diocletian

Diocletian

Diocletian |latinized]] upon his accession to Diocletian . c. 22 December 244  – 3 December 311), was a Roman Emperor from 284 to 305....

.

Veneration

Their cult remained localized in the Burgos region. A late Visigothic hermitage

Hermitage (religious retreat)

Although today's meaning is usually a place where a hermit lives in seclusion from the world, hermitage was more commonly used to mean a settlement where a person or a group of people lived religiously, in seclusion.-Western Christian Tradition:...

 dedicated to the two saints can be found at Valdelateja, and there is a church dedicated to them at Villafranca Montes de Oca

Villafranca Montes de Oca

Villafranca Montes de Oca is a municipality located in the province of Burgos, Castile and León, Spain. According to the 2005 census , the municipality has a population of 164 inhabitants....

 by Rodrigo de la Haya.