If you wish to learn more about life in Baku for the Nobel Family, visit http://www.villapetrolea.com/ (Swedish)
The Rotschilds were partners to the Nobels, for an introduction to the Rothschild archive, visit: https://www.rothschildarchive.org/
Ericsson was one of the Swedish companies acting on the same spots as the Nobel brothers, in St. Petersburg and Baku for example. You can learn more about this on www.ericssonhistory.com