Meili van Friesland - Sources?

That profile is in the wrong place on the tree IF he is the father of Sindacilla Odrade van Friesland

If he is the father of Thiadsvind then it's the right profile.

What I have found was there are many Radnoud van Friesland Dukes.
Radboud IV. V, II III, and so on all leeding up to Radboud ( Radbob) I van Fries,land

There's also a few dukes name Aldgisl van Frieslands again Aldgisl ,I II and III and so on.

regarding Meili van Friesland

Meili van Friesland Birth -738 husband of Aethelbert II van Saksen Billung Birth ABT 730
she was the sister of Aldgisl III van Friesland Birth ABT 725 • Frisia, Netherlands, Poppo van Friesland Birth 725
Death ABT. 806 Married to Gethulie von Ballenstedt Birth ABT 730 , Prinses dochter Radboud Birth 727 • Frisia, Netherlands husband of Gale Galama

If you and I can work together cleaning up the branches of the Van Friesland that would great.

I already have that apart of my tree build on another site and do have some reputable sources added to their profiles if you want to discuss this further.

Yes. We need sources for Meili as Radbod's daughter.