This is the 7531st most frequent Polish word.
królewiec
"Królewiec" is the Polish name for Kaliningrad, a city in Russia.
In this sentence, 'Królewiec' is used as a proper noun referring to the name of a particular city.
Królewiec to miasto w obwodzie kaliningradzkim.
Królewiec is a city in the Kaliningrad Oblast.
Here, 'Królewiec' again refers to the city, providing historical context.
W średniowieczu Królewiec był ważnym ośrodkiem handlu.
In the Middle Ages, Królewiec was an important trade center.
In this usage, 'Królewiec' points to the city's historical account discussed within educational materials.