Most people would agree that Portugal was the main source of inmigrants in Brazil, and of course, this European country was the main conqueror of territories in Brazil, but it was not the only one that influenced this country.
When the Austrian-Hungarian and Russian empires collpased in the aftermath of World War I, a vast majority of Russians seeked to move to Brazil, therefore comprising a third of the European inmigrant population, followed by countries such as Portugal, Italy, Spain, and Germany.
It is roughly estimated that around 47.73% of Brazilians are of full European descent.
I hope this helps, have a great week!