Simeon KOBURGOTSKI King and Prime Minister of Bulgaria …– | | |
| | Giovanna of ITALY Queen of Bulgaria …– Boris III of BULGARIA King of Bulgaria 1894–1943 | | |
Umberto II OF ITALY 1904–1983 | | |
| | Helen OF MONTENEGRO 1873–1952 Victor Emanuel III OF ITALY 1869–1947 | | |
| | Nicholas I OF MONTENEGRO 1841–1921 |
