educationist university professor
He studied Germanic studies and history at the University of Leipzig from 1875 to 1883, earning his doctorate in 1878 with a dissertation on the Gylfaginning section of the Prose Edda.
He held a professorship at the University of Leipzig. In 1889 he earned his habilitation in Scandinavian philology with an edition and translation of "The So-Called Second Grammatical Tractate of the Snorra Edda". He taught Scandinavian philology at the university from 1888 until his retirement in 1925: until 1893 as a privatdozent, from 1893 to 1901 as professor (nichtplanmäßiger außerordentlicher Professor), from 1901 to 1923 as full professor (planmäßiger außerordentlicher Professor) and from 1923 to 1925 as chair (ordentlicher Professor).
Among his students were Bernhard Kummer and Konstantin Reichardt.
In November 1933 he was a signatory to the statement of college and university faculty in support of Hitler and the Nazi regime. He died in Leipzig. Mogk married Margarete Scheer.
They had three sons. He also belonged to the Leoniden, an association of artists and intellectuals in Leipzig founded in 1909.
In 1924 he was honoured with a festschrift.
Mogk was a member of the Royal Danish Society of Antiquaries, the Finno-Ugrian Society, the Saxonian Academy of Sciences and the Association for Saxon Folklore, whose Publications he edited from 1897 on.