United States Court of Appeals
                      For the First Circuit


Nos. 18-2191
     19-1095
                         HARRY DE PRINS,

                       Plaintiff, Appellee,

                                v.

MICHAEL J. MICHAELES, Trustee of the Donald Belanger Irrevocable
 Trust dated October 28, 2008; DONALD BELANGER IRREVOCABLE TRUST
                     DATED OCTOBER 28, 2008,

                     Defendants, Appellants.


          APPEALS FROM THE UNITED STATES DISTRICT COURT
                FOR THE DISTRICT OF MASSACHUSETTS

         [Hon. Timothy S. Hillman, U.S. District Judge]


                              Before

                  Torruella, Lynch, and Kayatta,
                          Circuit Judges.


     Michael J. Rossi, with whom Conn Kavanaugh Rosenthal Peisch
& Ford LLP was on brief, for appellants.
     J. Mark Dickison, with whom Ryan A. Ciporkin, Laura S. Sawyer,
and Lawson & Weitzen, LLP, were on brief, for appellee.


                        November 15, 2019
          LYNCH, Circuit Judge.              This is an important case about

Massachusetts trust law which we think is better answered by the

Massachusetts    Supreme