Energetically pressing his candidature, he was chosen German king at Frankfort on the 4th or 5th of March 1152, and crowned at Aix-la-Chapelle on the 9th of the same month, owing his election partly to his personal qualities, and partly to the fact that he united in himself the blood of the rival families of Welf and Waiblingen.
In respect of trade and industry Aix-la-Chapelle occupies a high place.
The peace of Aix-la-Chapelle (1748), which ended the war of the Austrian Succession, brought no gains to France in spite of her victories at Fontenoy and Raucoux; and the king was blamed for the diplomatic failure.
Although, then, as the result of the war, Silesia was by the treaty of Dresden transferred from Austria to Prussia, while in Italy by the treaty of Aix-la-Chapelle in 1748 cessions were made at the expense of the house of Habsburg to the Spanish Don Philip and to Sardinia, the Austrian monarchy as a whole had displayed a vitality that had astonished the world, and was in some respects stronger than at the beginning of the struggle, notably in the great improvement in the army and in the possession of generals schooled by the experience of active service.
At the various congresses, from Aix-la-Chapelle (1818) to Verona (1822), therefore, he showed himself heartily in sympathy with the repressive policy formulated in the Troppau Protocol.
The hot sulphur springs of Aix-la-Chapelle were known to the Romans and have been celebrated for centuries as specific in the cure of rheumatism, gout and scrofulous disorders.
The country immediately surrounding Aix-la-Chapelle presents many attractive features.
This was an important stage in the history of the centralization of canon law; the collection was officially received by the Frankish Church, imposed by the council of Aix-la-Chapelle of 802, and from that time on' was recognized and quoted as the liber canonum.
Rudolph was crowned at Aix-la-Chapelle on the 24th of October 1273, and the feast which followed has been described by Schiller in Der Graf von Hapsburg.
In addition to those already mentioned, Aix-la-Chapelle possesses several fine secular buildings: the Suermondt museum, containing besides other miscellaneous exhibits the fine collection of pictures by early German, Dutch and Flemish masters, presented to the town by Bartholomaus Suermondt (d.