Sahl ibn Bishr & Masha'allah
Two early Arabic masters of horary and electional. Sahl's questions and Masha'allah's nativities are the doctrinal base for Bonatti, Lilly, and Cardano.
Chart conventions and source methods matter. A source reference does not by itself establish a personal interpretation. Missing context can make a method unavailable. Documented lives are examples, not proof of predictive accuracy.