produce. On the opposite bank of the Rhine, here crossed by a railway bridge, lies the little town of Neubreisach and the fort Mortier.
Breisach (Brisiacum), formerly an imperial city and until the middle of the 18th century one of the chief fortresses of the Empire, is of great antiquity. A stronghold of the Sequani (a Gallic tribe, which occupied the country of the Doubs and Burgundy), it was captured in the time of Julius Caesar by Ariovistus and became known as the Mons Brisiacus. Fortified by the emperor Valentian in 369 to defend the Rhine against the Germans, it retained its position throughout the middle ages as one of the chief bulwarks of Germany and was called the “cushion and key (Kissen und Schlussel) of the German empire.” Its importance was such that it gave its name to the district Breisgau, in which it is situated. In 939 it was taken by the emperor Otto I., and after remaining in the exclusive possession of the emperors for two centuries, was strengthened and shared for a while between them and the bishops of Basel. In 1254 and 1262 the bishops obtained full control over it; but in 1275 it was made an imperial city by King Rudolph I., and at the beginning of the 14th century his son brought it definitively into the possession of the Habsburg monarchs, leaving the bishops but few privileges. In the Thirty Years’ War Breisach successfully resisted the Swedes, but after a memorable siege and a defence by General von Reisach, one of the most famous in military annals, it was forced to capitulate to Duke Bernhard of Saxe-Weimar on the 18th of December 1638. The endeavours of the emperor Ferdinand III. to retake it were fruitless, and by the peace of Westphalia (1648) Breisach was annexed to France. By the peace of Ryswick (1697) it was restored to Austria, when Louis XIV. built the town and fortress of Neubreisach on the left bank of the Rhine. Again in 1703 it fell into the hands of the French, owing to treachery, but was ceded to Austria by the peace of Rastatt (1714)—Yet again, in the War of the Austrian Succession, it was captured (1744) by the French, who dismantled the fortifications. They refortified it in 1796, and after passing, by the peace of Lunéville (1801), together with the Breisgau to the duke of Modena, Breisach was by the peace of Pressburg (1805) finally incorporated with Baden, when the fortifications were razed. During the Franco-German War (1870) Breisach suffered severely from bombardment directed against it from Neubreisach.
BREISGAU, a district of Germany, in the grand duchy of Baden. It extends along the right bank of the Rhine from Basel to Kehl, and includes the principal peaks of the southern Black Forest and the Freiburg valley. The Breisgau, originally a pagus or gau of the Frankish empire, was ruled during the middle ages by hereditary counts. Of these the earliest recorded is Birtilo (962–995), ancestor of the counts and dukes of Zähringen. On the death of Berchthold V. of Zähringen in 1218, his coheiresses brought parts of the Breisgau to the counts of Urach and Kyburg, while part went to the margraves of Baden. At the close of the 13th century the Kyburg part of the Breisgau passed to the Habsburgs, who in 1368 acquired also the town and countship of Freiburg, which had been sold by the counts of Urach to the Freiburgers and given in pledge by them to the house of Austria in exchange for a loan of the purchase price, which they were unable to repay. The male Urach line becoming extinct in 1457, an heiress carried what remained of their possessions in the Breisgau to the house of Baden. In the struggle between France and Austria from the 17th century onwards the Breisgau frequently changed masters. In 1801 Austria was forced to cede it to Ercole III., duke of Modena, in compensation for the duchy of which Napoleon had deprived him. His successor Ferdinand took the title of duke of Modena-Breisgau, but on his death in 1805 the Breisgau was divided between Baden and Württemberg. The latter ceded its portion to Baden in 1810.
See Stokvis, Manuel d’histoire, &c. (Leiden, 1890–1893).
BREISLAK, SCIPIONE (1748–1826), Italian geologist of German parentage, was born at Rome in 1748. He early distinguished himself as professor of mathematical and mechanical philosophy in the college of Ragusa; but after residing there for several years he returned to his native city, where he became a professor in the Collegio Nazareno, and began to form the fine mineralogical cabinet in that institution. His leisure was dedicated to geological researches in the papal states. His account of the aluminous district of Tolfa and adjacent hills, published in 1786, gained for him the notice of the king of Naples, who invited him to inspect the mines and similar works in that kingdom, and appointed him professor of mineralogy to the royal artillery. The vast works for the refining of sulphur in the volcanic district of Solfatara were erected under his direction. He afterwards made many journeys through the ancient Campania to illustrate its geology, and published in 1798 his Topografia fisica della Campania, which contains the results of much accurate observation. Breislak also published an essay on the physical condition of the seven hills of Rome, which he regarded as the remains of a local volcano,—an opinion shown to be erroneous by the later researches of G. B. Brocchi. The political convulsions of Italy in 1799 brought Breislak to Paris, where he remained until 1802, when, being appointed inspector of the saltpetre and powder manufactories near Milan, he removed to that city. The mineral Breislakite was named after him. He died on the 15th of February 1826. His other publications include:—Introduzione alla geologia (1811, French ed. 1819); Traité sur la structure extérieure du globe, 3 vols. and atlas (Milan, 1818, 1822); Descrizione geologica della provincia di Milano (1822).
BREITENFELD, a village of Germany in the kingdom of Saxony, 512 m. N.N.W. of Leipzig, noted in military history. The first battle of Breitenfeld was fought on the 17th of September 1631, between the allied Swedish and Saxon armies under Gustavus Adolphus and the imperial forces under Count Tilly. The battlefield is a low ridge running east and west between the villages of Göbschelwitz and Breitenfeld, the position of the Imperialists lying along the crest from Göbschelwitz on the right to a point about 1 m. short of Breitenfeld on the left; opposite this position, and behind a group of villages on the Loberbach stream, lay the Swedish forces, flanked on their left by the Saxon contingent under the elector, who was assisted by Arnim. The villages formed the only obstacle on the gentle slope lying between the Loberbach and Tilly’s line; through these villages the Swedes defiled slowly, and formed up on the open ground beyond them. Tilly’s army was drawn up in a continuous line, the infantry ranged in heavy battalions in the centre, the cavalry on the wings, and the heavy artillery in a mass in front of the infantry. Gustavus arrayed the Swedes in two lines and a reserve, infantry in the centre, cavalry on the flanks, and the Saxons were drawn up in a similar formation on the left of the Swedish left-wing cavalry. So far as can be gauged the respective numbers were at least 32,000 Imperialists, 22,000 Swedes and 15,000 Saxons. The Swedish infantry was drawn up on an entirely novel system; each brigade of infantry, composed of several battalions, was formed in many small and handy corps of pikemen and musketeers, and parties of musketeers were also detached to support the cavalry. The guns were scattered along the front. The Saxons were ranged, like Tilly’s army, in heavy masses of foot and horse preceded by a great battery of guns. At 2 p.m. Pappenheim, commanding Tilly’s left wing, led forward the whole of his cavalry in a furious charge. Feeling the fire of the musketeers who were intercalated amongst the Swedish horse, Pappenheim swung round to his left and charged the Swedish right wing in flank. The Swedes of both lines promptly wheeled up, and after a prolonged conflict the Imperial horse were driven completely off the field. The attack of Tilly’s right wing under Fürstenberg directed against the Saxons was more successful. The Saxons were at once broken and routed, only a handful under Arnim maintaining the ground. Fürstenberg pursued the fugitives for many miles, and Tilly with the centre of infantry (which, considering the depth of its formations, must have possessed great manoeuvring power) rapidly followed him and formed up opposite the now exposed left of the Swedes. Thereupon the Swedes, in their light and handy formation, changed position rapidly and easily to meet him. Tilly’s attack
