Mannus, according to the Roman writer Tacitus, was a figure in the creation myths of the Germanic tribes. Tacitus is the only source of these myths.
Engraving of the three sons of Mannus (Carl Larsson, 1893): Ingui plays with a model ship (the Ingaevones lived by the sea); Irmin wears a helmet and sword (the Irminones were famed as warriors); Istaev/Iscio digs in the earth and has a toy horse (the Istvaeones were horsemen and farmers).
According to Tacitus's Germania, Tuisto is the legendary divine ancestor of the Germanic peoples. The figure remains the subject of some scholarly discussion, largely focused upon etymological connections and comparisons to figures in later Germanic mythology.
Tuisco from Promptuarii Iconum Insigniorum