Crown Prince Maha Vajirunhis was the first Crown Prince of the Chakri Dynasty. He was the first son of King Chulalongkorn

Chulalongkorn

Phra Bat Somdet Phra Poramintharamaha Chulalongkorn Phra Chunla Chom Klao Chao Yu Hua , or Rama V was the fifth monarch of Siam under the House of Chakri. He was known to the Siamese of his time as Phra Phuttha Chao Luang . He is considered one of the greatest kings of Siam...

 and Queen Savang Vadhana

Savang Vadhana

Queen Savang Vadhana of Siam was a consort of King Chulalongkorn or Rama V. Her full name and title was Queen Sri Savarindira - thus she was not the Rajini , but just was a highest consort...

.

In 1886, after the death of the last Vice King

Front Palace

Krom Phra Rajawang Bovorn Sathan Mongkol ) or the Front Palace was a royal title granted by the Siamese monarchy until the nineteenth century. The holder of the title of Front Palace was considered the heir to the throne and second only to the King. The title originated in the Ayutthaya period and...

 Bovorn Vichaichan, King Chulalongkorn chose not to appoint one of his brothers as a new Vice King, but instead appointed his eldest son as the Crown Prince of Siam

Crown Prince of Thailand

The Crown Prince of Thailand was a title held by the heir apparent to the Thai throne. First created by King Chulalongkorn in 1886, for his son Prince Maha Vajirunhis, the king's eldest son by a royal wife Princess Consort Savang Vadhana. Prior to this the Siamese throne did not have a law or...

. On 14 January 1886 he was officially introduced to his position with the title of Sayam Makutrajakuman or Crown Prince of Siam. A bright and handsome child the Prince died unexpectedly of typhoid at age 16, long before he could reach the throne. King Chulalongkorn's second son, Prince Vajiravudh

Vajiravudh

Phra Bat Somdet Phra Poramentharamaha Vajiravudh Phra Mongkut Klao Chao Yu Hua , or Phra Bat Somdet Phra Ramathibodi Si Sintharamaha Vajiravudh Phra Mongkut Klao Chao Yu Hua , or Rama VI was the sixth monarch of Siam under the House of Chakri, ruling from 1910 until his death...

 was then named crown prince, and succeeded him as Rama VI in 1910.

The King build the Prince his own Palace, nicknamed Windsor Palace

Windsor Palace (Thailand)

Windsor Palace was situated in Bangkok, Thailand, during the early twentieth century. Built on the orders of King Chulalongkorn to serve as the residence of Crown Prince Vajirunhis, the palace later became part of Chulalongkorn University but was later demolished to make way for the construction of...

, the European style palace was demolished after his death, the site is currently the National Stadium of Thailand.