The first Jews arrived in the territory of modern Poland in 10th century. Travelling along the trade routes leading eastwards to Kiev and Bukhara, the Jewish merchants (who included the Radhanites) also crossed the areas of Silesia. One of them, a diplomat and merchant from the Moorish town of Tortosa in Al-Andalus, known under his Arabic name Ibrahim ibn Jakub was the first chronicler to mention the Polish state under the rule of prince Mieszko I. The first actual mention of Jews in Polish chronicles occurs in the 11th century. It appears that Jews were then living in Gniezno, at that time the capital of the Polish kingdom of Piast dynasty. Some of them were wealthy, owning Christian serfs in keeping with the Feudal system of the times. The first permanent Jewish community is mentioned in 1085 by a Jewish scholar Jehuda ha Kohen in the city of Przemysl.