Mini Lop, not Holland Lop?The parents looked like them so Lionhead/Minilop. I'm not sure on the generation. They are double mane though so the cross had to have been several generations back.
Some people have been working Lionlops for several generations, so DM is pretty likely (you probably couldn't get good, downward-hanging ears in the F1 generation, either). The ARBA standards committee had said they weren't going to consider two breeds with the Lionhead coat; at one point, some of the people who were in line to get the Lionhead into the ARBA book of standards were actually breeding Lionlops.
Cute little beasts!
