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Law of Mahomet

The Canterbury Tales

The Law of Mahomet is the religious law taught by the prophet Mahomet and invoked in the narrative as the governing norm of the Sultan’s realm. Its decisive importance lies in the conflict between that law and Christian marriage: the Sultan’s people recognize that a Christian prince would not give his daughter in marriage under the Law of Mahomet, so the rule turns a personal and dynastic proposal into a problem of religious legitimacy, political authority, and cultural difference.

Definition and Legal Force

The Law of Mahomet appears through the speakers who describe the religious boundary separating the two courts. When the proposed marriage is considered, the advisers emphasize the diversity between the two religions and state that a Christian prince would not wed his daughter under the Law of Mahomet. In this formulation, the law is both a system of belief and a public legal order. It governs marriage, identifies the religious community to which a ruler belongs, and limits the kinds of alliance that can be recognized as legitimate.

The rule therefore operates through collective judgment rather than through a detailed catalogue of statutes. The Sultan’s people understand the marriage as impossible because the bride’s Christianity and the court’s Islamic law do not easily coexist within the same matrimonial arrangement. Their objection gives the Law of Mahomet institutional force: it is not merely a private conviction held by one character, but the standard by which a court evaluates a proposed union.

Conflict with Constance’s Faith

The tension becomes sharper because Constance remains publicly committed to Christianity. When the Sultaness addresses the assembled court, she warns that her son is approaching the point at which he might forget the holy laws contained in the Koran as given by God’s messenger Mahomet. Her language presents adherence to the law as a duty owed to divine revelation and as a responsibility of dynastic leadership. The possible marriage is consequently understood not only as an emotional or diplomatic choice, but as a threat to religious continuity.

Constance’s response establishes the opposing sacred framework. She crosses herself and prays to the cross of Christ, making her Christian allegiance visible at the very moment when the Law of Mahomet is being defended. The contrast is staged through bodily ritual: the Sultaness invokes the Koran and Mahomet, while Constance invokes Christ and the cross. Neither law is reduced to a casual custom. Each is represented as a faith-bearing authority capable of demanding loyalty from bodies, marriages, and rulers.

Marriage, Conversion, and Political Compromise

Because the two religious systems seem to make the proposed marriage impossible, the court searches for a practical resolution and finds no better plan than marriage itself, even while recognizing the religious difficulty. The resulting impasse reveals how closely the law is tied to political identity. A marriage that might unite the communities also risks appearing to abandon the rule that gives the Sultan’s household its religious legitimacy.

The narrative’s solution is conversion rather than a simple suspension of the Law of Mahomet. The religious conflict is eventually transformed through the movement of the ruling household toward Christianity, allowing the marriage pact to be imagined within a new religious order. In this sense, the law functions as a threshold: it first blocks the alliance, then makes the stakes of religious change intelligible. Conversion is politically consequential because it alters the framework under which the marriage can be authorized.

Relation to Authority and Judgment

The broader narrative repeatedly distinguishes among kinds of authority, including religious teaching, royal command, legal judgment, and personal oath. The Law of Mahomet belongs to this network as the rule invoked by a non-Christian court to define proper conduct. Its force depends on recognized interpreters and rulers, just as the law represented by the Sergeant of the Law depends on learned judgment and public office. These contrasts show that law in the work is never only text: it is carried by institutions, spoken in assemblies, and applied to bodies and relationships.

The treatment of the rule also clarifies the limits of political expediency. A dynastic advantage cannot simply erase the religious difference between the parties. The court must confront the fact that marriage would carry consequences for belief and succession. At the same time, the later religious transformation demonstrates that law can become part of a larger political settlement when authority itself changes direction.

Narrative Significance

The Law of Mahomet gives the marriage plot its first major obstacle and supplies the narrative with a visible model of legal pluralism. Christian and Islamic norms appear as competing sources of legitimacy, each attached to a community, a sacred text, and a governing authority. The conflict is therefore not merely between two individuals or families; it is between legal-religious systems that organize public life differently.

Its final significance is structural and moral. By placing Constance’s Christian devotion beside the Sultan’s court and its Law of Mahomet, the narrative turns marriage into a test of whether political union can survive religious difference. The rule is first presented as an obstacle that cannot be ignored, then as the condition that makes conversion and alliance meaningful. It remains important even when the plot moves beyond it, because the transformation of the court is measured against the law that originally governed it.