A Royal Scandals Family Tree

Calling for reader expertise! Many of you have asked for a Barrali/Cornaro family tree. I'd love to put one on my website, but am having trouble designing one that a) works for the web/is easy to read; and b) works for a complex family of fictional people. 

Many of the sites I see require birthdates, death dates, etc., which I don't want.

If you know of a good website or other resource where I can input names and design a family tree that would work for the Royal Scandals series, let me know. I'll get it onto NicoleBurnham.com ASAP.

Thanks in advance!