The following classes of contracts are subject to . . . . the Statute of Frauds, forbidding enforcement unless there is a written memorandum . . .
a contract made upon consideration of marriage (the marriage provision);
View on Lexis Advance
A promise for which all or part of the consideration is either marriage or a promise to marry is within the Statute of Frauds, except in the case of an agreement which consists only of mutual promises of two persons to marry each other.