I.33

Royal Armouries Ms. I.33 is the earliest known surviving European fechtbuch (combat manual), and one of the oldest surviving martial arts manuals dealing with armed combat worldwide. I.33 is also known as the Walpurgis manuscript, after a figure named Walpurgis shown in the last sequence of the manuscript, and "the Tower manuscript" because it was kept in the Tower of London during 1950-1996; also referred to as British Museum No. 14 E iii, No. 20, D. vi.

It was created around 1300 in Franconia and is first mentioned by Henricus a Gunterrodt in his De veriis principiis artis dimicatoriae of 1579.

The manuscript is anonymous and is so titled through an association with the Royal Armouries Museum.

The manuscript including the text date to about 1270-1320 CE It is first mentioned by Henricus a Gunterrodt in his De veriis principiis artis dimicatoriae of 1579, where he reports it to have been acquired (looted) by a friend of his, one Johannes Herbart of Würzburg when serving in the force of Albert Alcibiades, Margrave of Brandenburg-Kulmbach in the campaigns of 1552/3. It remained in a Franconian monastery (presumably in Eastern Franconia) until the mid-16th century. From the 17th century, the manuscript was part of the ducal library of Gotha (signature Cod. Membr. I. no. 115) until it disappeared in World War II and resurfaced at a Sotheby's auction in 1950, where it was purchased by the Royal Armouries. The author of the treatise may be a cleric called Lutegerus (viz. a Latinised form of the German proper name ).

The treatise expound a martial arts system of defensive and offensive techniques between a master and a pupil, referred to as sacerdos (priest) and scolaris (student), each armed with a sword and a buckler, drawn in ink and watercolour and accompanied with Latin text, interspersed with German fencing terms. On the last two pages, the pupil is replaced by a woman called Walpurgis.

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