Jerome

And Haran died before his father in the land of his birth, in the region of the Chaldeans. As we read, in the region of the Chaldeans, in Hebrew it is written, in Ur of the Chaldeans, that is, in the fire of the Chaldeans. However, the Hebrews relate a legend from this occasion: that Abraham was thrown into the fire because he refused to worship the fire that the Chaldeans worship, and with God's help, he was freed and escaped from the fire of idolatry. …

Hebrew Questions on Genesis ↗

Bede

Moreover, Aran begot Lot, and Aran died before his father Thare in the land of his birth, in Ur of the Chaldeans. What is said before Thare may designate both presence and time; time, evidently, because he died before his father; presence, indeed, because he passed away before him, that is, in his presence. Finally, some Codices have that he died before the face of his father Thare. …

Commentary on Genesis (Hexaemeron) ↗