not at once be executed. Toledo's army, debarred from the sack of
Haarlem, became mutinous through lack of pay. Until they received the
arrears due to them, they refused to stir. Not till August 21 was Don
Frederick able to invest Alkmaar with a force of 16,000 men. The
garrison consisted of some 1300 burghers with 800 troops thrown into the
town by Sonoy, Orange's lieutenant in North Holland. Two desperate
assaults were repulsed with heavy loss, and then the Spaniards proceeded
to blockade the town. Sonoy now, by the orders of the prince, gained the
consent of the cultivators of the surrounding district to the cutting of
the dykes. The camps and trenches of the besiegers were flooded out; and
(October 8) the siege was raised and the army of Don Frederick retired,
leaving Alkmaar untaken. Within a week another disaster befell the
Spanish arms. Between Hoorn and Enkhuizen the fleet of Bossu on the
Zuyder Zee was attacked by the Sea-Beggars and was completely defeated.
Bossu himself was taken prisoner and was held as a hostage for the
safety of Ste Aldegonde, who fell into the hands of the Spaniards about
month later.

This naval victory, following upon the retreat from Alkmaar,
strengthened greatly the efforts of Orange and gave fresh life to the
patriot cause. It likewise marked the end of the six years of Alva's
blood-stained rule in the Netherlands. Weary and disappointed, always
hampered by lack of funds, angry at the loss of the king's confidence
and chafing at the evidence of it in the presence of Medina-Coeli at his
side, the governor-general begged that he might be relieved of his
functions. His request was granted, October 29. The chosen successor was
the Grand Commander, Don Luis de Requesens, governor of Milan. It was
only with much reluctance that Requesens, finding the king's command
insistent and peremptory, accepted the charge.