 The new church was designed and built by the architects Anthemius of Tralles and Isidorus of Miletus, the same architects of the Hagia Sophia, and was consecrated on 28 June 550.The relics of Constantine and the three saints were re-installed in the new church, and a mausoleum for Justinian and his family was built at the end of its northern arm.For more than 700 years, the church of the Holy Apostles was the second-most important church in Constantinople, after that of the Holy Wisdom (Hagia Sophia).