These are "the rules" in Northern Ireland these days ..... ! - wonder how much it has changed ??
Type of Relationships Within Which Marriage is Unlawful
(i) Relationships by consanguinity
A man may not marry his:- A woman may not marry her:-
Mother Father
Daughter Son
Grandmother Grandfather
Granddaughter Grandson
Sister Brother
Aunt Uncle
Niece Nephew
Great-grandmother Great-grandfather
Great-granddaughter Great-grandson
(ii) Relationships by affinity
(a) Except in the circumstances explained in note (a) below.
A man may not marry his:- A woman may not marry her:-
Former wife’s daughter or granddaughter. Former husband’s son or grandson.
Father’s or grandfather’s former wife. Mother’s or grandmother’s former husband.
(b) Except in the circumstances explained in note (b) below.
A man may not marry his:- A woman may not marry her:-
Former wife’s mother. Former husband’s father.
Son’s former wife. Daughter’s former husband.
(iii) Relationships by adoption
A man may not marry his:- A woman may not marry her:-
Adoptive mother or former adoptive mother Adoptive father or former adoptive father.
Adopted daughter or former adopted daughter Adopted son or former adopted son.
Notes
a)Parties related within the degrees listed at 2a must be 21 years of age or over at the time of the marriage and the younger party must not, before his or her 18th birthday, have lived in the same household as the other party and been treated by that person as a child of the family.
b)Parties related within the degrees listed at 2b must be 21 years of age or over at the time of the marriage and the family members involved in creating the in-law relationship must both be deceased, eg for a man to marry his daughter-in-law, both his son and his son’s mother (usually but not always his wife) would require to be deceased.
Annie
