The following websites provide useful information about Luang Prabang heritage and culture 

The photo collection of anthropologist Professor Joel  Halpern from 1957, 1959 and 1969 is a fascinating archive of photographs of Laos and Luang Prabang at a time when the country was sliding into civil war, caught up in the interests of global super-powers.
search.library.wisc.edu/digital/ALaos

​https://www.thequietintheland.org/laos/the_story.html

​https://www.orientalarchitecture.com/cid/90/laos/luang-prabang

whc.unesco.org/​

This website provides detailed geneology for the royal house of Luang Prabang and Laos
https://www.royalark.net/Laos/laos.htm​