ARSCHOT, PHILIPPE DE CROY, DUKE OF (1526-1595), governor-general of Flanders, was born at Valenciennes, and inherited the estates of the ancient and wealthy family of Croy. Becoming a soldier, he was made a knight of the order of the Golden Fleece by Philip II., king of Spain, and was afterwards employed in diplomatic work. He took part in the troubles in the Netherlands, and in 1563 refused to join William the Silent and others in their efforts to remove Cardinal Granvella from his post. This attitude, together with Arschot's devotion to the Roman Catholic Church, which he expressed by showing his delight at the massacre of St Bartholomew, led Philip of Spain to regard him with still greater favour, which, however, was withdrawn in consequence of Arschot's ambiguous conduct when welcoming the new governor, Don John of Austria, to the Netherlands in 1576. In spite, however, of his being generally distrusted by the inhabitants of the Netherlands, he was appointed governor of the citadel of Antwerp when the Spanish troops withdrew in 1577. After a period of vacillation he deserted Don John towards the end of that year. Jealous of the prince of Orange, he was then the head of the party which induced the archduke Matthias (afterwards emperor) to undertake the sovereignty of the Netherlands, and soon afterwards was appointed governor of Flanders by the state council. A strong party, including the burghers of Ghent, distrusted the new governor; and Arschot, who was taken prisoner during a riot at Ghent, was only released on promising to resign his office. He then sought to regain the favour of Philip of Spain, and having been pardoned by the king in 1580 again shared in the government of the Netherlands; but he refused to serve under the count of Fuentes when he became governor-general in 1594, and retired to Venice, where he died on the 11th of December 1595. See J.L. Motley, _The Rise of the Dutch Republic_. ARSENAL, an establishment for the construction, repair, receipt, storage and issue of warlike stores; details as to _materiel_ will be found under AMMUNITION, ORDNANCE, &c. The word "arsenal" appears in various forms in Romanic languages (from which it has been adopted into Teutonic), i.e. Italian _arzanale_, Spanish _arsenal_, &c.; Italian also has _arzana_ and _darsena_, and Spanish a longer form _atarazanal_. The word is of Arabic origin, being a corruption of _daras-sina'ah_, house of trade or manufacture, _dar_, house, _al_, the, and _sina'ah_, trade, manufacture, _sana'a_, to make. Such guesses as _arx navalis_, naval citadel, _arx senatus_ (i.e. of Venice, &c.), are now entirely rejected.