Mothers in HP

[Tonks]

No: HPFGUIDX 150627

I was thinking about a theme that I have noticed and wondering what it 
means. 

First we have LV's mother who dies to give him life.
Then Harry's mother who dies to save Harry from death.
And Barty Jr's mother who died in her son's place.  

It is always a mother dying for her son. Do we see a father dying for a 
child?  Do we see anyone dying for a daughter? I can't remember but if 
not, then there seems to be a theme here. But what is it, and why?

I hope this doesn't mean something bad for our beloved Molly.

Tonks_op