Joachim's younger son was Philip, an influential prelate in the second half of the 13th century, who served as Bishop of Zagreb from 1247 or 1248 to 1262, and as Archbishop of Esztergom from 1262 until his death, and was a strong confidant of the Hungarian royal family.
[4] When an uprising broke out in Vidin against Boril of Bulgaria in that year, the Bulgarian ruler was unable to suppress the rebellion without external assistance and turned to Andrew II, reminding him "their reliable friendship".
In response, the Hungarian king sent Joachim to lead an army of Saxons, Vlachs, Székelys and Pechenegs across the Carpathian Mountains to fight for Boril of Bulgaria against three rebellious Cuman chieftains, according to a royal charter issued in 1250.
Joachim first routed the three Cuman chieftains who tried to halt his invasion, killing two of them in the battlefield, while the third one Karas was captured and sent to the Hungarian royal court as a prisoner.
In the document, the king confirmed Thomas and Philip, the sons of the late Joachim, in their inherited paternal land possessions, describing the merits of the three members of the Türje kindred.