Steinkeller, who was a member of a council of Wrocław (Breslau), wrote in a letter addressed to his home town, that Sigismund, Holy Roman Emperor, was going to grant Vytautas the title of the King of Lithuanians: her wolde machen herczog Wytolten eynen konyng der Leytten. The word forms, which have meanings Lithuanian, Lithuanians, Lithuania and are most likely derived from the word leitis, are constantly found in the historical sources from the 14th and 15th centuries. For example, Lithuania is rendered as in writing as czwicshen Lythen und Prewssen (1415); as das land Litten with a further clarification that it was Aukštaitija in a narrative of a participant or witness of the Battle of Strėva. The ruler of Lithuanians was rendered as die Litischen konige in the chronicle of Wigand von Marburg. It seems that the presence of such forms with -ei- in Latvian (more known in a western part), German and Samogitian dialect itself has a high possibility that the forms could derive from Western Balts, but it is unclear why they have no suffix -uva / -ava. Simas Karaliūnas claims that the word Lietuva had a meaning of bodyguard, retinue, attendant soldiery, troops. Such use is recorded, for example, in Russian sources: krestil knjazja Litovskago imenem Evnutija i ego družinu Litvu (baptized the duke of Lithuania Jaunutis and his retinue Lithuania); I pšišed posol Totui i vydal Korjadą i ego družinu Litvu knjazju velikomu Semenu Ivanovičiu (and came an envoy Totui and handed Karijotas and his retinue Lithuania over to Grand Duke Semyon Ivanovich). Karaliūnas accepts the synonymy of the words leičiai and Lietuva as proven and supposes that the word leitis, leičiai (< *leitiai) derives from the form *leitā, a synonym of *lietuvā, *leitavā, which, as it is shown above, had the meaning of armed retinue. Place names and surnames According to the hypothesis proposing the relation between leičiai and Lietuva, the name of Lietava, a small river which flows between Neris and Šventoji and which is the leading explanation for the origin of the name of Lithuania, should be an example of a toponym which was derived from leičiai. In the same area there is Rukla town, maybe relating with the name Ruklys, son of King Mindaugas, and it is thought that leičiai could have lived in an estate now known as Perelozai located by Lietava. Among place-names considered to be derived from the word