Than you very much ka Khun เทาชมพู for your kindness.
Khun "paganini" ka, i read "ลูกท่านหลานเธอ ผู้อยู่เบื้องหลัง........." in bookstore. I'm not sure, but i think some information in that book is inconsistence with other books.
Khun พวงร้อย ka, I also have the same question like you for a long time. I read it from one book i use when i studied in secondary school. Thank you ka. And thank you Khun เทาชมพู. (again) for answer.
Can i save this article to read later ka? ( I have not enough time to read in detail ka.)
P.S. I can't type Thai in this computer ka.-_-" But i'm in Thailand.