This group is located between the Phra Maha Monthian and Phra Thinang Dusit Maha Prasat. It was built by King Rama V. In the beginning there were 11 buildings but now only three remain.

          The eleven buildings were not constructed at the same time. First came the palace where King Rama V was born and lived with his mother and younger brothers. After ascending the throne, he moved to the Phra Maha Monthian and he decided to replace his living quarters here. Construction began in 1869 and was completed in 1873.

          The first buildings consisted of four units in European style. This group of Palaces later fell into decay beyond repair. The present King had them pulled down and rebuilt only two of them. They are Phra Thinang Mulasathan Borom-at and Phra Thinang Sommottithewarat Upbat.

Phra Thinang Mulasathan Borom-at Hall

          This two storey building stands on the site of Phra Thinang Mulasathan Borom-at and Niphatthaphong Thaworawichit. The length of this new building is equal to the two former edifices added together. It is used as a banquet hall.

 

Phra Thinang Sommottithewarat Upbat Hall

          This two storey building stands on the site of Sommottithewarat Upbot and Damrongsawat Ananyawong. It is used to serve tea.

          After having built the four palace buildings as mentioned, King rama V built another group to the south of the first in 1870 and completed them in three years. They were six European style buildings. All these buildings were pulled down to make way for the construction of the new Boromratchasathit Maholan.

Phra Thinang Chakri Maha Prasat Throne Hall

          This was constructed during the reign of King Rama V to commemorate the centenary of Chakri Dynadty. It was designed by British architect, in the European style with roof in pure Thai style, thus blending East and west. Construction lasted for six years from 1876 – 1882. The roof has three spires of seven tiered Mondop style. At the four corners of the base of the spires there used to be mouldings of Garudas holding Nagas as decorative supports, but during renovation in King Rama VII's reign they were replaced by swan-shaped brackets. The roof is in two tiers and covered with colored glazed tiles.

          On the top floor of the central mansion the royal ashes are kept and the king gives public audience from a front projection there of. The second floor serves as an audience hall where portraits of the present king and queen are displayed. On the ground floor is the office of the royal guards.

          In the eastern mansion, religious objects are kept on the top floor. The middle floor serves as a reception hall for royal guests. On the wall the family portrait of King Rama V, his queen and their five son is hung. The lowest floor serves as a guest's waiting room.

          In the western mansion, on the top floor are kept the ashes of queens and high ranking princes and princesses. The middle floor serves as guest's chamber where on the wall are hung the portraits of King Rama VII and Her Majesty Queen rambhai Barni. The lowest floor serves as library.

          A gallery joins the central mansion to the eastern mansion. The middle floor is divided lengthwise into two parts. The inner part is a reception room where the portraits of the kings of Chakri Dynasty from King Rama I to King Rama VII are hung. The outer part is a verandah which connects the throne hall to the reception hall.

          Another gallery joins the central mansion to the western one. The middle floor is an open hall for receiving guests. On the wall there are portraits of Queens of King Rama IV, V and VII. The ground floor is also an open hall.

          In the rear center of the Chakri Maha Prasat is the Chakri Throne Room where the king receives ambassadors on the occasion of the presentation of their credentials. At the end of the room stands the throne called Phuttanthom throne, made of wood covered with silver and gold foil. A nine tiered white umbrella made for king stands over this throne. The emblem of the Chakri Dynasty is depicted on the wall behind the throne. The other walls are decorated with four canvasses depicting diplomatic receptions of the past. One on the right as one enters the room depicts the reception by Queen Victoria of King Rama IV's ambassador in London, further on is Louis XIV's reception of the mission sent by King Narai of Ayutthaya in the Gallerie des Glaces in the Palace of Versailles; the third, on the other side of the room, King Rama IV's reception of the French Envoy, and the fourth, the reception at Fontainebleau by the Emperor Napoleon III of another Siamese Mission. The crystal decorations of the hall are mostly presents from foreign monarches to King Rama V.

          From this rear throne hall there are doors leading to Phra Thinang Mulasathan Borom-at and Sommottithewarat Upbat. It is joined with Boromratchasathit Maholan where the king gave audience to princesses and female courtiers in the days when ladies were not allowed to mix with gentlemen.