Belgium
The United Kingdom
France and Britain both adminstered parts of Cameroon before Independence.
Before the advent of the Spanish the territory was unclaimed by any European power.
None
Alustrallia
It is owned by France, and is part of the European Union.
Many settled in modern-day South Africa, Angola, Namibia, Madagascar, Botswana, Mozambique, Swaziland, Zambia, Kenya, Zimbabwe, Mauritius, Equatorial Guinea, Ghana and Senegal. These nations still retain considerable white populations.
Is it the Vatican?
No. Mitsubishi is only related to Chrysler by 35% of their vehicles, but it is not owned by Chrysler. Mitsubishi is owned by European FC Truck Motor Company.
Historically, many European nations had colonies in Africa. However, Europe never "owned" the continent.
The first European to arrive in what is now Namibia was the Portuguese explorer Diego Cão, who reached the region in 1485 during his voyages along the west coast of Africa. He is known for mapping parts of the coastline and establishing contact with local indigenous groups. Cão's explorations marked the beginning of European interest in the area, although significant colonization did not occur until much later.