Where antiquity left off with its attempts at sexual love, there the middle ages resumed the thread: with adultery. We have already described the love of the knights that invented the day songs. From this love endeavoring to break through the bonds of marriage to the love destined to found marriage, there is a long distance which was never fully traversed by the knights. Even in passing on from the frivolous Romanic race to the virtuous Germans, we find in the Nibelungen song Kriemhild, who secretly is no less in love with Siegfried than he with her, meekly replying to Gunther's announcement that he has pledged her in troth to a certain knight whom he does not name: "You need not beg for my consent; as you will demand, so I shall ever be; whomever you, sir, will select for my husband, I shall willingly take in troth." It does not enter her head at all that her love could find any consideration. Gunther asks for Brunhild, Etzel for Kriemhild without ever having seen one another. The same is true of the suit of Gutrun Sigebant of Ireland for the Norwegian Ute and of Hetel of Hegelingen for Hilda of Ireland. When Siegfried of Morland, Hartmut of Oranien and Herwig of Sealand court Gutrun, then it happens for the first time that the lady voluntarily decides, favoring the last named knight. As a rule the bride of the young prince is selected by his parents. Only when the latter are no longer alive, he chooses his own bride with the advice of the great feudal lords who in all cases of this kind have a decisive voice. Nor could it be otherwise. For the knight and the baron as well as for the ruler of the realm himself, marriage is a political act, an opportunity for increasing their power by new federations. The interest of the house must decide, not the arbitrary inclination of the individual. How could love have a chance to decide the question of marriage in the last instance under such conditions?

The same held good for the bourgeois of the medieval towns, the members of the guilds. Precisely the privileges protecting them, the clauses and restrictions of the guild charters, the artificial lines of division separating them legally, here from the other guilds, there from their journeymen and apprentices, drew a sufficiently narrow circle for the selection of a fitting bourgeois spouse. Under such a complicated system, the question of fitness was unconditionally decided, not by individual inclination, but by family interests.

In the overwhelming majority of cases the marriage contract thus remained to the end of the middle ages what it had been from the outset: a matter that was not decided by the parties most interested. In the beginning one was already married from his birth—married to a whole group of the other sex. In the later forms of group marriage, a similar relation was probably maintained, only under a continual narrowing of the group. In the pairing family it is the rule for mothers to exchange mutual pledges for the marriage of their children. Here also the main consideration is given to new ties of relationship that will strengthen the position of the young couple in the gens and the tribe. And when with the preponderance of private property over collective property and with the interest for inheritance paternal law and monogamy assumed the supremacy, then marriage became still more dependent on economic considerations. The form of purchase marriage disappears, but the essence of the transaction is more and more intensified, so that not only the woman, but also the man have a fixed price—not according to his qualities, but to his wealth. That mutual fondness of the marrying parties should be the one factor dominating all others had always been unheard of in the practice of the ruling classes. Such a thing occurred at best in romances or—among the oppressed classes that were not counted.

This was the situation encountered by capitalist production when it began to prepare, since the epoch of geographical discoveries, for the conquest of the world by international trade and manufacture. One would think that this mode of making the marriage contract would have been extremely acceptable to capitalism, and it was. And yet—the irony of fate is inexplicable—capitalist production had to make the decisive breach through this mode. By changing all things into commodities, it dissolved all inherited and traditional relations and replaced time hallowed custom and historical right by purchase and sale, by the "free contract." And the English jurist, H. S. Maine, thought he had made a stupendous discovery by saying that our whole progress over former epochs consisted in arriving from status to contract, from inherited to voluntarily contracted conditions. So far as this is correct, it had already been mentioned in the Communist Manifesto.

But in order to make contracts, people must have full freedom over their persons, actions and possessions. They must furthermore be on terms of mutual equality. The creation of these "free" and "equal" people was precisely one of the main functions of capitalistic production. What though this was done at first in a half-conscious way and, moreover, in a religious disguise? Since the Lutheran and Calvinist reformation the thesis was accepted that a human being is fully responsible for his actions only then, when these actions were due to full freedom of will. And it was held to be a moral duty to resist any compulsion for an immoral action. How did this agree with the prevailing practice of match-making? Marriage according to bourgeois conception was a contract, a legal business affair, and the most important one at that, because it decided the weal and woe of body and spirit of two beings for life. At that time the agreement was formally voluntary; without the consent of the contracting parties nothing could be done. But it was only too well known how this consent was obtained and who were really the contracting parties. If, however, perfect freedom of decision is demanded for all other contracts, why not for this one? Did not the two young people who were to be coupled together have the right freely to dispose of themselves, of their bodies and the organs of these? Had not sexual love become the custom through the knights and was not, in opposition to knightly adultery, the love of married couples its proper bourgeois form? And if it was the duty of married couples to love one another, was it not just as much the duty of lovers to marry each other and nobody else? Stood not the right of lovers higher than the right of parents, relatives and other customary marriage brokers and matrimonial agents? If the right of free personal investigation made its way unchecked into the church and religion, how could it bear with the insupportable claims of the older generation on the body, soul, property, happiness and misfortune of the younger generation?

These questions had to be raised at a time when all the old ties of society were loosened and all traditional conceptions tottering. The size of the world had increased tenfold at a bound. Instead of one quadrant of one hemisphere, the whole globe now spread before the eyes of West Europeans who hastened to take possession of the other seven quadrants. And the thousand-year-old barriers of conventional medieval thought fell like the old narrow obstacles to marriage. An infinitely wider horizon opened out before the outer and inner eyes of humanity. What mattered the well-meaning propriety, what the honorable privilege of the guild overcome through generations to the young man tempted by the gold and silver mines of Mexico and Potosi?

It was the knight errant time of the bourgeoisie. It had its own romances and love dreams, but on a bourgeois footing and, in the last instance, with bourgeois aims.

Thus it came about that the rising bourgeoisie more and more recognized the freedom of contracting in marriage and carried it through in the manner described above, especially in Protestant countries, where existing institutions were most strongly shaken. Marriage remained class marriage, but within the class a certain freedom of choice was accorded to the contracting parties. And on paper, in moral theory as in poetical description, nothing was more unalterably established than the idea that every marriage was immoral unless founded on mutual sex-love and perfectly free agreement of husband and wife. In short, the love match was proclaimed as a human right, not only as droit de l'homme—man's right—but also for once as droit de femme—woman's right.

However, this human right differed from all other so-called human rights in one respect. While in practice other rights remained the privileges of the ruling class, the bourgeoisie, and were directly or indirectly curtailed for proletarians, the irony of history once more asserted itself in this case. The ruling class remains subject to well-known economic influences and, therefore, shows marriage by free selection only in exceptional cases. But among the oppressed class, love matches are the rule, as we have seen.

Hence the full freedom of marriage can become general only after all minor economic considerations, that still exert such a powerful influence on the choice of a mate for life, have been removed by the abolition of capitalistic production and of the property relations created by it. Then no other motive will remain but mutual fondness.