These three small structures constructed in the Fourth Reign, adjoin the low wall to the west of the Ubosot with Ho Rajkoramanusorn to the north, Phra Photithat Piman in the middle and Ho Rajbongsanusorn to the south. They are just behind the hermit you saw upon entering the compound. Ho Phra Rajkoramanusorn was to house Buddha images in the various attitudes corresponding to the king in particular reigns. Ho Rajkoramanusorn house some 37 Buddha images representing each of the various reigns of Ayutthaya and Thonburi, while the middle building houses a small stupa which Prince Mongkut (later King Rama IV) obtained from the north while he was still a prince. It houses a Buddha relic.