H. Repton proposed the style of Indian Architecture as the style of the most proper architecture for a palace of the Royal family, in Designs for the Pavilion at Brighton (1809). He developed some theories of his own, in order to prevent some objection against this style. He compared the characters of Grecian Architecture with those of Gothic Architecture, and picked up Indian Architecture as the third architecture. He thought, if it was adopted the style of Indian Architecture, it could be protected the general characters and the principles of construction which each architecture had. He considered Grecian, Gothic and Indian Architecture had their respective peculiarity on the principles of construction and the ornaments taking architectural effect, the origin of Indian Architecture was different from that of two other architectures, and Indian Architecture was the oldest architecture in the world. In his opinion about Grecian, Gothic and Indian Architecture, there was the near idea of the theory of architectural origin.