The minimum is three weeks. Three week residence comes from the requirement to give the minister seven days notice, then the two weeks between the reading of the banns. No minister was obliged to publish banns unless the parties delivered to him at least seven days before the time required for the first publication, a notice in writing giving their names, address within the parish, and the time they had been living there.The seven days' notice was not always insisted on, especially when the minister was acquainted with the parties so the residence could be two weeks. No legal penalties were incurred if false statements were given as to the place of abode in which they "dwelt, inhabited or lodged" and the length of their residence in such place. Although the minister should decline to publish the banns after the discovery of any false statement. A continuous unbroken residence was not necessary during this short period. Non-residence in the parish in which the banns were published did not affect the validity of the marriage once the ceremony had been performed.
With a common licence the marriage was required to take place in church or chapel where one party has already lived for 4 weeks. It was also good for 3 months from date of issue.
Stan