Complex sentence: It is unknown if Jænberht ever acknowledged Hygeberht's elevation as an archbishop, nor is there any evidence that Jænberht contested the division of his archiepiscopal see and the creation of another archbishopric.
Split into simpler sentences: It is unknown if Jænberht ever acknowledged Hygeberht's elevation as an archbishop. Nor is there any evidence that Jænberht contested the division of his archiepiscopal see and the creation of another archbishopric.