It was a usual practice from the times of the Roman emperors and even prior, to attribute the victories of the military leaders to the rulers. Sigismund the Old demonstrated his initiative by assembling the army and seeking to reverse, in 1514, the course of the war of 1512- 1522 with Moscow, in the direction more favourable to Lithuania After the loss of Smolensk, an important victory was achieved against Moscow's troops at Orsha. The ruler was not involved in the battle, with quite a significant part of the troops - 4000 soldiers - staying away at quite a distance in the camp in Borisov. The joint Lithuanian and Polish units were led on the battle field by Great Hetamn of Lithuania Konstantin Ostrozskij. The article analyzes how this situation is reflected in the written sources about the battle. The question about the role of the ruler's figure in historical sources prompts a closer look at the narrative texts dedicated to the Catholic part of Europe as well as literary works composed on certain occasions. Among the official letters carrying the news of the victory, the letter by Sigismund the Old to the pope appears of the utmost importance and has been published repeatedly. The sole circumstance of the king speaking on his behalf leads to the association of all the events with the king's actions. The letter rings a pronouncedly triumphant note and serves the obvious propaganda objective - to depict the enemy in a negative light and to aggrandize the author's mission and success. Of a similar content, only shorter in length, are also the letters to other rulers, church dignitaries and relatives (these are not discussed in greater detail). Of importance was the letter by the papal legate Jacobus Piso (hung. Jakab Piso) written from Vilnius to his friend Joannes Coricius (Coritius, Corycius, Goritz). It is of a totally different nature and continues the tradition of humanist letters dedicated to public reading. It has also been repeatedly published. Despite its different nature, the letter also demonstrates the author's gratitude for the ruler Sigismund's favourable disposition and depicts the king, as befitting, against the background of the military action as the main author of the victory. The letter does not mention any names of the military leaders. As an exception, by the end of the letter, outside the context of the war, alongside with other trivia of interest, appears a characteristics of Konstantin Ostrozskij. Most of the poetical works dedicated to the victory at Orsha, were first of all promptly published in Krakow; subsequently they were included into the collection Carmina de memorabili cede Scismaticorum Moscouiorum published in Rome in 1515. The article discusses the poems in terms of the depiction of the ruler. Of them, stand out the poems written in Vilnius by Andreas Cricius (Andrzej Krzycki), the then-secretary of Barbara, the first wife of the king. They mention most of the military leaders that took part in the battle (Konstantin Ostrozskij, Janusz Świerczowski, Wojciech Sampolinski, Jurgis Radvila) and other details. Yet other poetic works dedicated to the victory, by Joannes Dantiscus (pol. Jan Dantyszek), Valentinus Ekius (Valentin Eck, Eckius, Ecchius), Christophorus Suchtenius (Christoph von Suchten), Casparus Ursinus Velius, Bernardus Vapovius (Bernard Wapowski), - are examples of laudatory writing dedicated to the occasion and include little realistic detail, mostly relying on the opposition of the pictures of victorious Sigismund and smitten Moscow's ruler, whose losses are especially emphasized. Despite some shared features, repetitive common places (loci communes) and motives, these authors each had their own poetic concept, distinct in their creative ideas, poetic composition, completeness, poetic form, intonation and poetics. [ABSTRACT FROM AUTHOR]