This handwriting of the monk Hugh of Flavigny is from the 11th century. Character segmentation, shown by the blue and orange dyed letters, has been accomplished by the Diptychon system.

More information about Hugh of Flavigny can be found here:
Mathias Lawo: Studien zu Hugo von Flavigny (Monumenta Germaniae Historica, Schriften, Bd. 61). Hahnsche Buchhandlung, Hannover 2010; ISBN 978-3-7752-5761-9.