Hezron.

Genesis 46:12
The sons of Judah: Er, Onan, Shelah, Perez, and Zerah; but Er and Onan died in the land of Canaan. The sons of Perez: Hezron and Hamul.

Numbers 26:21
And these were the descendants of Perez: the Hezronite clan from Hezron and the Hamulite clan from Hamul.

Ruth 4:18
Now these are the generations of Perez: Perez was the father of Hezron,

Matthew 1:3
Judah was the father of Perez and Zerah by Tamar, Perez the father of Hezron, and Hezron the father of Ram.

Luke 3:33
the son of Amminadab, the son of Admin, the son of Arni, the son of Hezron, the son of Perez, the son of Judah,

Esrom.