Draco's Side of the Family:

Narcissa and Lucius Malfoy (His parents)

Arthur and Molly Weasley (His godparents, which explains why the Weasley's accept Draco into their family.)

Ginny's Side of the Family:

Bastian Weasley (Arthur's father)

Arthur and Molly Weasley (Her parents)

Percy and Marion Weasley (Her brother and sister in law)

Bill and Fleur Weasley (Her brother and sister in law)

Charlie (single)

Ron and Hermione Weasley

Fred and ?

George and ?

Draco and Ginny Malfoy

Liam and Jade Malfoy

Lucien (Arthur's twin) and Victoria a.k.a. Vicky (ex-wife,)

Nathan Weasley

Olivia (Liv) and Sherlock Weston

Alec and Austion Weston

Hasbreth Weasley

Fenwick Weasley

Jasper Weasley (Bastian's twin, and Arthur's uncle)

Jai and Saya Weasley

Quinn, Merry, Robin and Brianna Weasley

Germana (Arthur's aunt and Jasper and Bastian's sister) married Howard (whose daughter is Severine Delacour, grand daughters are Fleur Weasley and Gabrielle Delacour)

AN- I know this isn't exactly a tree, but it serves the same purpose. The names closest to the left are the older generations and towards the right are the younger generations. Hope this helps!