From Charles Harper, Revolted Woman: Past, Present, and to Come (1894):
In Germany, during mediaeval times, domestic differences were settled by judicial duels between man and wife, and a regular code for their proper conduct was observed. ‘The woman must be so prepared,’ so the instructions run, ‘that a sleeve of her chemise extend a small ell beyond her hand like a little sack: there indeed is put a stone weighing iii pounds; and she has nothing else but her chemise, and that is bound together between the legs with a lace. Then the man makes himself ready in the pit over against his wife. He is buried therein up to the girdle, and one hand is bound at the elbow to the side.’