Complex sentence: In 1779 General Phraya Chakri did seize Laos and brought the Emerald Buddha to Thonburi, and after he became king Rama I the figurine was moved to it's final place in the Wat Phra Kaew on March 22 1784.
Split into simpler sentences: In 1779 General Phraya Chakri seized Vientiane and brought the Emerald Buddha to Thonburi. After he became King Rama I, the image was moved to its final place in the Wat Phra Kaew on March 22 1784.