(Polish title: Konie, rzad konski i oporzadzenie jezdzieckie wczesnonowozytnego dworu ksiazecego w swietle rachunków dworskich. Analiza porownawcza) Research on the accounts of ducal courts from the turn of the modern era has resulted in gathering extensive data on the rulers' journeys, especially on the horses and horse-riding accessories used for travel. The court of Prince Sigismund Jagiellon, which moved a lot, bought much more horses than the court of Duke Janusz II; the sums spent on horses were also significantly larger. There is also a significant difference in the number of transactions. The treasury of Janusz II paid for several dozen transactions, while the court of Sigismund Jagiellon needed almost 2000 horses. Sigismund spent 46 times more money on horse-riding accessories (13,731 florins) than Janusz. The interrelations between the two investigated courts and the differences in their expenditure are shown in percentages, with the rate of growth and the chain relative calculated. Such an analysis shows a vast disproportion between the two courts. Prince Sigismund's court was much more mobile; its frequent and distant journeys served the Prince's wide-scale political plans. The Duke of Mazovia was active only on a provincial scale, unlike Sigismund Jagiellon, the future King of Poland and Grand Duke of Lithuania.
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