Grimald, Latinised Grimaldus, was abbot of Weissenburg Abbey, abbot of the Abbey of Saint Gall (841–872), arch-chaplain of the East Frankish king Louis the German (848–870) and chancellor. He was one of the founders of scholarly education in the East Franconian Empire and in St. Gall.

Otfrid of Weissenburg was a monk at the abbey of Weissenburg and the author of a gospel harmony in rhyming couplets now called the Evangelienbuch. It is written in the South Rhine Franconian dialect of Old High German. The poem is thought to have been completed between 863 and 871. Otfrid is the first German poet whose name we know from his work.