Louis Pasteur came along around this same time and proffered the germ theory of disease and a vaccine for rabies.
He refused the proffered crown of Bohemia, and, when the Bohemian Protestants elected a Calvinist prince, he assisted the emperor against them with men and money.
Henry received the proffered assistance gratefully, and in return for the king's kindness subsequently left by his will certain British crown jewels in his possession to the prince regent.
Having crushed his son and rejected the proffered mediation of Pope Gregory IX., the emperor declared war on the Lombards in 1236; he inflicted a serious defeat upon their forces at Cortenuova in November 1237 and met with other successes, but in 1238 he was beaten back from before Brescia.
The count of Flanders, brother to the king of the Belgians, was proclaimed hospodar of the united provinces, but declined the proffered honour.