Ab Initio

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Ab Initio — «с момента заключения» or, depending on context, «с момента совершения» or «с момента подписания» — a Latin term meaning «from the beginning», for example, «the contract is void ab initio» or «the marriage is void ab initio».

As the Russian law stands, an invalid transaction is void ab initio (or from the time of its making) and does not entail legal consequences other than those that are connected with its invalidity. Invalidity of a marriage, on the other hand, does not affect the rights of the children born in such marriage. Moreover, although the invalidity of a marriage usually means the invalidity of a prenuptial agreement (marriage contract), Russian courts can enforce such agreement in favour of the weaker party (art. 30 of the Family Code).