Who was Draco's nanny?

[Tonks]

No: HPFGUIDX 125248


It occured to me that Narcissus would not want to deal with a baby. 
Who would have been Draco's nanny?  Dobby?  I would think that Dobby 
would have had a lot of other things to do if he was the only house-
elf that the Malfoys had. Was he? If Dobby was the nanny, one would 
think that maybe some of Dobby's good nature would have rubbed off 
on the little tyke. Any thought?

Tonks_op