The Process of the Emergence of towns means to be build up the towns in Chiang Mai-Lamphun Valley for establishment the power of people in a new group who expanded from Chiang Rai Valley. The purpose of this thesis is study the process of the Emergence of towns in Lanna by using 3 sources : Legends, Archeological objects and Aerial photographs. And we found that the archeological objects and the aerial photographs conflicted and consistented with Legends in the same time, for example

Suwannakumdang Legend tell about many towns of Lawa, which situated on Doi Suthep Foothill, but we never discovered any city or town that aged older than cities and towns in Harripunchai period in this area. Besides, the archeologista found the archeological objects that belonged to the indigenous people

who lived upon the east of Kuang River. Moreover, they found the archeological objects at Wat Sangkaram in Lamphun District, which showed the mixed culture and population between the indigenous people and the Harripunchsis citizen. This archeological discovery consistent with Moollasassana Legend, that talk about the conjunction of indiginous people and Harripunchais citizen

who migrated from Choapraya River plan, in Harripunchai State. Many Years age, the students of Lanna history belived that Lanna Kingdom was born together with the establishment of Chiang Mai. However, this thesis wants to explain that the establishment of the towns and the expansion of King Mangrais power in Chiang Rai Valley and Chiang Mai- Lamphun Valley was just the begining of the development of Lanna State. Because, we found the separation and trouble in politic after King Mangrais reign, such as

the insurrection of Kun Kuern,tao Num Thum and Tao Yee Kum Kam, ect. These events resulted Kings in Mangrai Dynasty, had to find many ways to restore and stabilize his status. And the best ways was legitimation of monarchy by religious policy. Furthermore, in the part of Mangrai Dynasty, the pattern of Government was not complicated, because it depended on the relative kinship, which was different from the centralization in King Tiloks period. In the reign of King Tilok, the territory expanded, so the pattern of government (the centralization) became complicated more than the commencement of Lanna State, that was just a State. Thus, this thesis purpose that the centralization of King Tilok made the Lanna State be Kingdom, because the king (King Tilok) became an entire powerful king

we found that King Tilok was able to completely control the royal aristocrats and the nobleness for a long time, such as

the alternate position of the nobleness and the seigneurs, that resulted nobody could not resist him.