Who consecrated Scipione Rebiba?

His Eminence Scipione Rebiba is considered as the last bishop most Roman Catholic bishops can trace their episcopal lineages from. Who consecrated Scipione Rebiba? If we don't know, are there at least theories on who did? The *Wikipedia* article on him says: > "However, since it is canon law that there must be at least three bishops present at a consecration, it is possible to bypass Rebiba using the bishops who cooperated with him in his consecrations." Are there any records about who cooperated with him?