chuckers wrote:
> The 3rd son is Yoshinaga Miyamoto who go left behind.
> And now, Koizumi apparently didn't see him much, regardless of gender.

The question, I think, was about the two other sons, the ones he got 
custody of.

And according to the « be all and end all of "accurate" info », I think 
he didn't see them much more than the one he did not get custudy of :

"Two of his three sons (Kotaro Koizumi and Shinjiro Koizumi) were kept 
in Koizumi's custody and raised by one of Koizumi's sisters"