I am using this as a section for notes for myself on some of my horses, since I cannot afford to purchase the Pegasus Pack at the moment for the notebook feature. 

-Arg. Criollo - Lennon's foals & Gemma's foals can breed, as the two mares are not related. 
--Vincent can be bred with Lennon. 
--Alaric can be bred with Gemma, Arya, Odessa, & Xylia. 
--Rohan can be bred with Lennon, Gemma, Arya, Odessa, & Xylia.

-Quarter - Faris & Arwen are my starter horses, related to no one. 
--Faris & Arwen can breed with anyone except their own foals. 
--Arwen cannot breed with Arlo or Drystan. Arwen can breed with Mael or Blaise. 
--Verena is a unicorn with non-unicorn children - Ivah, Blaise, Merletta, & Minerva.
--Tamaska can breed with anyone. Katniss can breed with anyone. Anissa. 
--Mael can breed with anyone!