About the year 910, or perhaps the year following, Franco, at the command of Charles, opened the important negotiation with this adventurer. The offers were—Neuctria with the ducal title, and the hand of Gisele, a natural daughter of the king, provided he would embrace Christianity, and become the liege vassal of the French crown. This prelate was an eloquent, persuasive man, and had already considerable influence over the mind of Rollo. But that chief objected to one of the conditions as not sufficiently liberal. Neuctria he had already; and there was no great generosity in recognising his title to that which nobody could wrest from him. Besides, it was, he alleged, barren and half-peopled; but he forgot that this result was his own work and that of his countrymen. Franco then offered a portion of Bretagne—perhaps the whole—as an arriere-fief; and Rollo no longer hesitated. He had a wife already, Popa, the daughter of a French count; and her he repudiated,—on what ground is matter of dispute; but surely there need be none. Rollo was not yet a Christian; he had not been married in any Christian church; how then could the church recognise the union? Gisele, therefore, was to become the bride of the chief. A meeting of Rollo and of Charles was appointed at St. Clair-sur-Epte, a place on the frontier of Normandy. In 912, both repaired to that town,—Charles with a splendid retinue of nobles and prelates, by whose advice he had entered into a treaty with the new vassal. Here the investiture took place; Rollo did homage to the sovereign, and both acts were witnessed by the French nobles. To kneel before the monarch, hold up his hands between those of the superior, and repeat a certain formula called an oath, were no great acts of degradation; and to these Rollo had no objection. But the homage was not complete until the regal foot was kissed. To this humiliation he would not stoop, and he was allowed to perform it by deputy. A warrior of his suite was accordingly brought forward; but he was no less proud than his master; and on the royal foot being somewhat raised, he raised it still higher, and threw the poor monarch on his back, amidst the suppressed laughter of the assembly.[292] [Sidenote: 912.]