In lady and the tramp is Angel daughter of Tramp Peg?

No, Angel is not Tramp's daughter in the movie *Lady and the Tramp*.

* Angel is a stray dog, a friend of Tramp's and a member of the pack he leads.

* Peg is a female stray dog who is a friend of Tramp's.

There is no indication that Angel is the child of Tramp or Peg in the movie.