be a judge of something

I couldn't judge that, of course, but he exactly described the period I'm talking about.

But no man could judge of another's luck, that was clear.

"Do not judge me too good a reader of character."

Only those who knew Bonaparte can judge of my situation at that moment.

No prince, however, would judge of a princess by weight.

"But I'd still rather have someone else judging, of course."

"Come now," says the king, "I wish to see for myself, and my eyes will judge of the truth."

"Don't you judge a fighter by the quality of his fighters?"

It has been often observed, that you cannot judge of an author's personal character from his writings.

Yes, such is our intention, and we shall judge of them accordingly.