Who was Queensland named after?

Title says it all. Was it named after Victoria as I long thought or Queen Adelaide (William IV’s wife) as some web pages say? Or perhaps it was not named after any specific queen, just queens[sup]1[/sup] in general? Evidence against Adelaide is that she was dead about 10 years when it was named and Victoria was the one who approved the name.

[sup]1[/sup] But probably not the other kind of queen…

This site says Queen of Britain

Both Victoria and Queensland were named after Queen Victoria