reconciler

His power over his contemporaries was supreme as a reconciler of long-standing enmities.

Nor did even her mother object, for sickness is a wondrous reconciler.

Education is, indeed, of all differences not divinely appointed, an instant effacer and reconciler.

For reconciliation between finite and infinite, there must be a Reconciler combining both.

He is the general counsellor, the reconciler of family quarrels, the arbitrator in differences, the guardian of morals.