Ludwig's sister, Louisa, exchanging her religion for a consort's crown, was the wife of the Czar Alexander I; and he himself was married to the Princess Theresa of Saxe-Hildburghausen, a lady described as "plain, but exemplary." Still, so far as personal appearance goes, Ludwig himself was no Adonis. Nestitz, indeed, has pictured him as "having a toothless jaw and an expressionless countenance." But his consort did her duty; and, at approved intervals, presented him with a quiverful of four sons and three daughters. Of his sons, one of them, Otto, was, as a lad of sixteen, selected by the Congress of London to be King of Greece, much to the fury of the Czar Nicholas, who held that this was a cunning, if diplomatic, attempt to set up a Byzantine empire among the Hellenes. "Were I," he said in a despatch on the subject, "to give my countenance to such a step, I should nullify myself in the eyes of my Church." Nesselrode, however, was of another opinion. "It is unbecoming," he was daring enough to inform his master, "for the Emperor of Russia to question a step upon which the Greeks themselves are not in entire accord." A remarkable utterance. Politicians had gone to Siberia for less. Palmerston, too, had his way, and Otto, escorted by a warship, left his fatherland. On arriving in Athens, the joy-bells rang out and the columns of the Parthenon were flood-lit. But the choice was not to the popular taste; and it was not long before Otto was extinguished, as well as the lights. By the irony of fate, he returned to Munich on the very day that Ludwig had erected a Doric arch to commemorate the activities of the House of Wittelsbach in securing the Liberation of Greece. Despite this untoward happening, Ludwig remained an ardent Phil-Hellene; and, as such, conceived the idea of converting his capital into a mixture of Athens and Florence and a metropolis of all the arts. Under his fostering care, Munich was brought to bed of a succession of temples and columns, and sprouted pillars and porticoes in every direction. The slums and alleys and huddle of houses in the old enceinte were swept away, and replaced by broad boulevards, fringed with museums and churches and picture galleries. For many of the principal public buildings he went to good models. Thus, one of them, the Koenigsbau, was copied from the Pitti Palace; a second from the Loggia de' Lanzi; and a third from St. Paul's at Rome. He also built a Walhalla, at Ratisbon, in which to preserve the effigies of his more distinguished countrymen. Yet, although it ran to size, there was no niche in it for Luther.