How was this made?
First, the silk was woven in Byzantine or Islamic regions of the Mediterranean. Silk is created from the thread of the silkworm. The silk used for the miter may have traveled along trade routes or diplomatic channels established during the crusades. The silk bears subtle patterns of heraldic eagles.
After the silk had arrived in Germany or Austria, the head of the miter was constructed from the imported silk and then hand-embroidered with purple and gold roundels and stars.
The lappets, the trailing ribbon-like streamers, were added, possibly using the technique of tablet weaving.