Using the names from the actual saga.
LN: Black
MN: Crabbe
DH: Pollux
DW: Irma
DD: Walburga
-DH: Orion [Black]
--DS: Sirius
--DS: Regulus
DS: Cygnus
-DW: Druella [Rosier]
--DD: Bellatrix "Bella"
---DH: Rodolphus [Lestrange]
--DD: Andromeda "Dromeda"
---DH: Ted [Tonks]
----DD: Nymphadora "Dora"
-----DH: Remus John [Lupin]
------DS: Ted Remus "Teddy"
--DD: Narcissa "Cissy"
---DH: Lucius [Malfoy]
----DS: Draco Lucius
-----DW: Astoria [Greengrass]
------DS: Scorpius Hyperion