Contract Of Confidentiality Is It A Breach Of Confidentiality If A Daycare Has No Contract With The Parent?

Is it a breach of confidentiality if a daycare has no contract with the parent? - contract of confidentiality

I had three children of a couple who was married and separated, but remained with the father of the child from a previous relationship I had, the contract was with the bride's father is not on the Division I talked to him and to the information which should have given them. My question is, if my contract was not breached her confidentiality?