themselves. The library of the Elector was seized by the king as his
share, and presented by him to his chancellor, Oxenstiern, who intended
it for the Academy of Westerrah, but the vessel in which it was shipped
to Sweden foundered at sea.

After the loss of Mentz, misfortune still pursued the Spaniards on the
Rhine. Shortly before the capture of that city, the Landgrave of Hesse
Cassel had taken Falkenstein and Reifenberg, and the fortress of
Koningstein surrendered to the Hessians. The Rhinegrave, Otto Louis,
one of the king's generals, defeated nine Spanish squadrons who were on
their march for Frankenthal, and made himself master of the most
important towns upon the Rhine, from Boppart to Bacharach. After the
capture of the fortress of Braunfels, which was effected by the Count of
Wetterau, with the co-operation of the Swedes, the Spaniards quickly
lost every place in Wetterau, while in the Palatinate they retained few
places besides Frankenthal. Landau and Kronweisenberg openly declared
for the Swedes; Spires offered troops for the king's service; Manheim
was gained through the prudence of the Duke Bernard of Weimar, and the
negligence of its governor, who, for this misconduct, was tried before
the council of war, at Heidelberg, and beheaded.

The king had protracted the campaign into the depth of winter, and the
severity of the season was perhaps one cause of the advantage his
soldiers gained over those of the enemy. But the exhausted troops now
stood in need of the repose of winter quarters, which, after the
surrender of Mentz, Gustavus assigned to them, in its neighbourhood. He
himself employed the interval of inactivity in the field, which the
season of the year enjoined, in arranging, with his chancellor, the
affairs of his cabinet, in treating for a neutrality with some of his
enemies, and adjusting some political disputes which had sprung up with