Part I Divorce, Nullity and Other Matrimonial Suits
Nullity
11Grounds on which a marriage is void.
A marriage celebrated after 31st July 1971F6, other than a marriage to which section 12A applies, shall be void on the following grounds only, that is to say—
a
that it is not a valid marriage under the provisions of F1the F2Marriage Acts 1949 to 1986 (that is to say where—
i
the parties are within the prohibited degrees of relationship;
ii
either party is under the age of F7eighteen; or
iii
the parties have intermarried in disregard of certain requirements as to the formation of marriage);
b
that at the time of the marriage either party was already lawfully married F3or a civil partner;
F5c
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d
in the case of a polygamous marriage entered into outside England and Wales, that either party was at the time of the marriage domiciled in England and Wales.
For the purposes of paragraph (d) of this subsection a marriage F4is not polygamous if at its inception neither party has any spouse additional to the other.