Phraprawat tonrātchasakunwong thī sư̄p trong čhāk Somdet Čhaofā Krommaphra Sīsudārak, rāchinīkun Ratchakān thī 4

Genealogy of royal line originating with Sīsudārak, Princess, d. 1800, elder sister of Phutthayō̜tfā Čhulālōk, King of Siam, 1737-1809, and mother of Sīsuriyēnthrāmāt, Queen, consort of Phutthalœ̄tlā Naphālai, King of Siam, 1767-1836, latter also mother of King Mongkut, King of Siam, 1804-1868; cremation volume for Čhitti ʻItsarāngkūn Na ʻAyutthayā, 1921-1966, former official of Sugar Industry Company of Thailand; includes his biography.