Judges 1:11-13

11 And from there he went up against the people of Debir. (Now the name of Debir in earlier times was Kiriath-sepher.)

12 And Caleb said, I will give Achsah, my daughter, as wife to the man who overcomes Kiriath-sepher and takes it.

13 And Othniel, the son of Kenaz, Caleb's younger brother, took it; so he gave him his daughter Achsah for his wife.