on the Sudarium of Oviedo:
Lying in the Cathedral of Oviedo, Spain in relative obscurity compared to its more famous cousin, the Sudarium presents a better provenance and history than the Shroud and may be the sole surviving relic of the crucifixion that has made it to modern times. Measuring 34″ by 21″, the Sudarium is a bloodstained cloth purported to have covered the head of Jesus of Nazareth after his burial. The cloth is mentioned to have been in the tomb in John 20:6-7 described as a cloth seperate from the shroud. It isn’t mentioned again until 570 A.D. when it was being kept by monks in a cave near Jerusalem. In 614, just before the Sasanian King of Persia Khusru II conquered Jerusalem, the cloth was taken to Alexandria, and within just a few years made its way to Spain through North Africa. Its been there ever since.
AND: here is a 1997 paper with pictures, The Sudarium of Oviedo: Its History and Relationship to the Shroud of Turin by Mark Guscin
Here are some postings on the Sudarium in this blog in just the past year: