Is the phrase "My circle of the people I know" correct?

Question

I know a similar phrase which is "my circle of friends".

Thus, would this one apply as that phrase?

The sentence:

Who could that be? Although my circle of the people I know, is not that big.

Answer 1

Although my circle of the people I know, is not that big...

This is a little bit awkward because it says "my circle" and "I know" which is redundant. If it's your circle, you will know the people in it, right?

You could say:

Although the circle of people I know is not that big...

but it is still a little wordy. You might want to say,

Although my circle of acquaintances is not that big...

If you start your sentence with "although" I expect you to contrast your statement with something else after the comma. For example,

Although my circle of friends is small, they come from places all over the world.