in his lot with the brave Hollanders and Zeelanders in their gallant
struggle against overwhelming odds. To identify himself more completely
with his followers, the prince, October, 1573, openly announced his
adhesion to Calvinism. There are no grounds for doubting his sincerity
in taking this step; it was not an act of pure opportunism. His early
Catholicism had probably been little more than an outward profession,
and as soon as he began to think seriously about religious questions,
his natural bent had led him first to the Lutheran faith of his family,
and then to the sterner doctrines, which had gained so firm a foothold
in the towns of Holland and Zeeland. Nevertheless William, though
henceforth a consistent Calvinist, was remarkable among his
contemporaries for the principles of religious toleration he both
inculcated and practised. He was constitutionally averse to religious
persecution in any form, and by the zealots of his party he was
denounced as lukewarm; but throughout his life he upheld the right of
the individual, who was peaceful and law-abiding, to liberty of opinion
and freedom of worship.

The year 1574 opened favourably. By a remarkable feat of arms the
veteran Spanish commander Mondragon had, October, 1572, reconquered
several of the Zeeland islands. His men on one occasion at ebb-tide
marched across the channel which lies between South Beveland and the
mainland, the water reaching up to their necks. The patriot forces had
since then recovered much of the lost ground, but Middelburg was
strongly held, and so long as the Spaniards had command of the sea, was
the key to the possession of Zeeland. On January 29, 1574, the
Sea-Beggars under Boisot attacked the Spanish fleet near Roemerswaal and
after a bloody encounter gained a complete victory. The siege of
Middelburg was now pressed and Mondragon surrendered, February 18. The
prince at once set to work to create a patriot government in the