Rat-; Ratasiewicz from ancient dithematic Polish names such as Racibor, Racisław. Also, it may derive from name places such as Ratki, Ratków, Ratkowo.
In 2002 there were only 93 individuals using the surname Ratasiewicz living in Poland. Detailed map of the surname distribution can be found here https://nazwiska-polskie.pl/Ratasiewicz . As you can notice concentration of this Ratasiewiczs is north-east corner of today's Poland, close to Polish Lithuanian border.
Gongalewski is most probably distorted form of surname Gągolewski, recorded also - especially in older documents - as Gongolewski
Gągolewski with its feminine form ending with "a" instead of "i" - Gągolewski - derives from Polish gęga- which means just goose or gęgać - to gaggle.
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