Claudius, Matthias (Reinfeld, Holstein, 1740-1815, Hamburg), a pastor's son, attended the grammar school at Plön and then studied theology and law at Jena University. After a short spell as secretary to Graf Holstein in Copenhagen (1764-5), he worked on the Andreßcomptoir-Nachrichten (1768-70).
In 1771 he took over the editorship of the newspaper Der Wandsbecker Bothe, with which he identified himself so successfully that he himself is often referred to as ‘Der Wandsbecker Bothe’. Claudius, who, under the pseudonym Asmus, was the chief contributor to the newspaper, managed to give it a popular style without cheapness or vulgarity, and a homely, friendly tone without seriously relaxing intellectual standards. The basis of his writing was religious, and he maintained a broad and tolerant judgement. Der Wandsbecker Bothe ceased publication in 1776, but Claudius collected his prose and verse contributions and published them as Asmus, omnia sua secum portans oder sämtliche Werke des Wandsbecker Bothens (1775), which, with new material, continued in seven further volumes up to 1812.
Herder, a friend of Claudius, obtained for him in 1776 an administrative appointment in the government of Electoral Hesse at Darmstadt. But Claudius did not settle in public life and returned in 1777 to Wandsbeck. His marriage to a joiner's daughter in 1772 was uniformly happy. From 1785 he received a Danish pension. Among his friends at various stages of his life, apart from Herder, were J. H. Voß and Goethe.
Claudius, who is the father of German popular journalism, is also a poet with a delight in the minor happenings of life and a sincere simplicity in their expression. Three of his poems have become virtual folk-songs: ‘Der Tod und das Mädchen’, ‘Rheinweinlied’, and ‘Abendlied’, opening with the line ‘Der Mond ist aufgegangen’; written in 1779, it was included in Herder's collection of folk-songs (see Stimmen der Völker in Liedern) and set to music by J. A. P. Schulz. He is the originator of the designation ‘Freund Hein’ as a personification of death, and Asmus's works are accompanied by a line engraving of Freund Hein as a skeleton holding a scythe.




