Kostka
Kostka from the house of the "Dąbrowa" coat of arms community is a Polish noble family. The Catholic family comes from Mazovia and is a branch of the noble lords of Rostkowski. Well-known bearer of this name was Stanislaus Kostka (1550–1568), a saint of the Catholic Church .
The line of trunks begins in 1246 with Przybyslaw, voivode of Mazovia. Nawoj Rostkowski took the name "Kostka" in the first half of the 15th century. Jakob Kostka (1428–1495) received the title of Count of Stangenberg / hrabia na Sztemberg from King Casimir IV Jagiełło . Jacob's son Jan (1475–1519) made a name for himself in the service of the Polish crown with some other dignitaries with Emperor Maximilian I Habsburg during the Princely Congress of Vienna and the Vienna double wedding (“First Vienna Congress”) in 1515. As thanks for the drafting of the contract, he received the title of Count of the Holy Roman Empire of the German Nation . However, this title was later not allowed to be used in Poland. The reason was the new order of the estates and the nobility, which was decided during the Lublin Union (1569–1792).
The family is divided into a Mazovian line (died out with Paul Kostka, childless and the oldest brother of Stanislaus Kostka) and a Pomeranian line with various branches. From 1475 a Nobilis Andrzej Kostka can be identified, who married there and started his own family line.
This Pomeranian line was subdivided again in 1759 into a Moravian branch with the predicate "von Liebinsfeld". Karl Joseph Kostka, former primator of Littau in Moravia , was raised to the Austrian nobility on November 8, 1759 or was enrolled. The descendants of the Moravian branch have had the surname and title “Kostka h. Dabrowa Edle von Liebinsfeld ”from the count's house in Stangenberg / Sztemberg.