The earliest church was consecrated by
Pope Simplicius between 468 and 483. It was dedicated to the
protomartyr Saint Stephen, whose body had been discovered a few decades before in the
Holy Land, and brought to Rome. The church was the first in Rome to have a circular plan. Its architecture is unique in the Late Roman world. Santo Stefano was probably financed by the wealthy
Valerii family whose estates covered large parts of the
Caelian Hill. Their
villa stood nearby, on the site of the present-day
Hospital of San Giovanni Addolorata. Saint
Melania the Elder, a member of the family, was a frequent pilgrim to Jerusalem and died there, so the family had connections to the Holy Land. The church was originally commissioned by
Pope Leo I (440-461), with the date confirmed by ancient coins and by
dendrochronology, which places the wood used in the beams of the roof to around 455 AD, but was not consecrated until after his death. The original church had three concentric
ambulatories flanked by 22
Ionic columns, surrounding the central circular space surmounted by a
tambour that is high and 22 m wide). There were 22 windows in the tambour but most of them were walled up in the 15th-century restoration. The central ambulatory had a diameter of , and the outer one a diameter of . Four
side chapels extended from the middle ambulatory to the outer ambulatory, forming a
Greek cross. The church was embellished by
Pope John I and
Pope Felix IV in the 6th century with mosaics and colored marble. It was restored in 1139–1143 by
Pope Innocent II, who abandoned the outer ambulatory and three of the four side chapels. He also had three transverse arches added to support the dome, In 1579, the Hungarian
Jesuits joined the Pauline Fathers. The
Collegium Hungaricum, established by
István Arator in 1579, was merged with the
Collegium Germanicum in 1580, and became the
Collegium Germanicum et Hungaricum, because very few Hungarian students were able to travel to Rome from the Turkish-occupied,
Kingdom of Hungary. On a visit to Rome in 1819
J. M. W. Turner made sketches of both the exterior and interior. The
Cardinal Priest of the
Titulus S. Stephani in Coelio Monte has been Friedrich Wetter since 1985. His predecessor,
József Mindszenty, was famous as the persecuted Catholic leader of Hungary under the Communist dictatorship. == Exterior ==