at somebody's side
at the side of somebody

Look at each side of your baby's face and head.

She went near him and sat down at his side.

No one can help you, even if they stand at your side.

No one can stand against you with us at your side.

He has a lot more to look forward to with me at his side again.

With you at his side he may even become a great one.

The day when he should have died at his father's side.

The woman took his place on the bed at her side.

But before too long I'll want you at my side again.

When she got no answer, the woman turned toward the big man at her side.