Following their victorious exploits against the invading Tartars King Casimir IV Jagiellon rewarded them in 1444 with the domain of Łanowce in present day Ukraine.
[4] According to another source, Adam Kosiński, the Jelowicki are likely descendants of the Kropotka Jełowicki family branch which apparently went extinct in the 16th-c.
He argues this since their principal domain was Jalowicze/Jełowicz, and they used the Jełowicki seal indicating their origin as from Jełowicz.
[5] Moreover, on 28 February 1841 a decree of a special commission of certification granted the family the right to princely status confirmed by the Russian heraldic office in Saint Petersburg.
[6] At the start of the 18th-century a branch of the family moved to Podolia to land in the Bratslav Voivodeship in the Vinnytsia Oblast where their huge estate was devoted to cereal production and prospered further with the opening and development of the port of Odessa from 1794.
[7] Stefan Jełowicki married to an Iwankiewicz, became through her, heir to Antoni Jaroszyński and his property at Siennica in Mińsk Mazowiecki powiat.
[10][11] The Jełowicki family tree is geographically based and draws on the Żychliński text.
Wacław who died in the battle of Danow was the father of the executed Edward, of Aleksander and Eustachy Jełowicki.