ca. 906 C.E.

“Customs, Maritime and Stacking Ordinance” (‘Zoll-, Schiffahrts- und Stapelordnung’) issued by Louis IV, the Child (‘Ludwig das Kind’) [Duchy of Carinthia; Present-day Austria, Croatia, Italy, Slovenia] [Provisional]: “[…] Jewish merchants are not only to pay a tariff/customs for their goods but also for their [workers]. […]”
Engelman, Wilhelm: Das Judentum in Oesterrich und die böhmischen Unruhen (The Jewry in Austria and the bohemian Unrest); (Leipzig; 1845); Researched and Translated by Ziba Shadjaani, 9/25/2017