Which preposition to use with barrault

with Occurrences 1%

With this unsatisfactory reply Leyré and his companion were fain to content themselves; and having, as they were desired to do, delivered into the hands of the Duke the detailed despatch of M. de Barrault with which they had been entrusted, they saw him calmly resume his way to Juvisy, while they continued their route to Fontainebleau.

Which preposition to use with  barrault