1 Chronicles 2:3-4

The sons of Judah were Er, Onan and Shelah; these three were born to him by Bath-shua the Canaanitess. And Er, Judah’s firstborn, was wicked in the sight of the LORD, so He put him to death. Tamar his daughter-in-law bore him Perez and Zerah. Judah had five sons in all.