The Polish surname Jackowski is of patronymic origin, that is, the name was created from the first name of the original bearer's father. In this instance, the surname is derived from the Polish name Jacek, which is the equivalent of the English Jack.
The surname Jackowski was first found in Wielkopolska, or "Great Poland," the historical region that incorporates today's districts of Kalisz, Poznan, Leszno and Konin. In their later history the name became a power unto themselves and were elevated to the ranks of nobility as they grew into this most influential family.
This web page shows only a small excerpt of our Jackowski research. Another 111 words (8 lines of text) covering the years 150 and 1500 are included under the topic Early Jackowski History in all our PDF Extended History products and printed products wherever possible.