בְּנֵ֣י לַ֠עְדָּן בְּנֵ֨י הַגֵּרְשֻׁנִּ֜י לְלַעְדָּ֗ן רָאשֵׁ֧י הָאָב֛וֹת לְלַעְדָּ֥ן הַגֵּרְשֻׁנִּ֖י יְחִיאֵלִֽי׃
The sons of Ladan, the sons of the Gershonites belonging to Ladan, the heads of the fathers’houses belonging to Ladan the Gershonite: Jehieli.
Rashi on I Chronicles
The sons of Ladan To Ladan the Gershonite was the chief of the fathers, Jehiel. He is Ladan mentioned above (23:7-9).