This in the classic sense of the word and by its traditional, original definition.

As CS Lewis put it in Mere Christianity, a gentleman is

“one who had a coat of arms and some landed property”

That is how the word was defined, usefully, before it was ripped to shreds by the mis-use of morons and common men, fools.

I own land. I own landed property. That is one half of the definition.

Here! Look at the Arndt Coat of Arms!