Rudolf was highly popular with the peasantry, winning their hearts by his affability, simple habits, and kindly good-nature. His tall and slender person, thin face, and aquiline nose, were striking features, and not easily forgotten when once seen. He had been known to mend with his own hands, after a campaign, the old grey coat he usually wore, and this was but a typical act of his. And the proud opposition he offered to a plundering nobility quite won for him the confidence of the people. The great cities stood on good terms with him, and sought his friendship and aid. Thus did the Alsacian towns seek his help against the bishops of Strasburg; Zurich against the barons of Regensberg and Toggenburg. On many an occasion did he render remarkable service in this way, of which one instance must suffice. The barons of Regensberg had a castle on the Uto, a mountain towering above Zurich, and from thence often sent men to waylay and rob the citizens who chanced to pass that way. Rudolf hit on a crafty device. Riding up the Uetliberg with thirty men of Zurich, he placed behind each man a companion, and so came to the gate of the castle. The garrison despising a band apparently so small, rushed out of the gates upon them. But great was their terror when suddenly the men riding behind appeared in sight, and, taking to flight, they left the castle at the mercy of the strange attacking party. The place was levelled with the ground. Rudolf was asked by a body of free men of Uri to be their umpire in a dispute, and he actually sat in judgment on the matter, under the linden at Altorf, a fact which bears witness to his popularity amongst the people. Yet, with many amiable qualities, Rudolf was covetous, ambitious, and violent. Bent on raising his family to greatness, he reveals a most mercenary spirit, and shows himself unscrupulous in the pursuit of gain. It has been shown above, how he had seized the Kyburg lands; he also made himself guardian of Anna of Kyburg, and when she came of age, united her to his cousin, Eberhard of Habsburg. Thus was founded the new House of Kyburg-Burgdorf. He obtained from them Anna's heritage in the Aargau, besides Zug, Art, Willisan, Sempach, &c., as well as lands in the Forest Cantons. He was one of those chieftains who profited immensely by the distraction during the interregnum. Whilst engaged in storming Basel, whose bishop had encroached on the Alsacian territories, the news was brought to Rudolf (October 1, 1273) that he had been elected King of Germany, at Frankfort, and, raising the siege, he at once proceeded to his coronation at Aix-la-Chapelle.