It is worth noting that Estilian Royalty currently a mix of the Albistiel Bloodline and the Strain Bloodline.
After the eradication of most the Strain bloodline, they abandoned the idea of purebloods to preserve what little of their lineage remained. Estilia's founding lineage had been comprised of the Strain bloodline up to the second generation.
The Family Tree:put a nice picture here
The Current Line
King ??? and Queen Elenora have 13 "official sons and daughter" - In Order of Birthright
9. Maura (Deceased)