If this is in fact true (I have no evidence one way or the other; it sounds like it came from one of those "wacky law" lists, which are not always bastions of reliability), then it's because some Kentucky legislator in the past felt strongly enough about it to sponsor a law against it.
Just in case you hadn't noticed: laws don't have to make sense. They have to make enough sense to convince someone to pass them at the time they're enacted, but that doesn't mean they make any sense whatsoever today (and they may have made precious little sense even at the time).
Kentucky
Kentucky
three times
He married three times.
Yes, three times.
Navade
Three times - he has 21 kids with them all as well.
In Greece, people are allowed to marry three times in church, therefore marrying a widow presents no special problem.
He could be very nervous
Absolutely nothing will happen.
Through the 2008 season, Kentucky and Oklahoma have met three times with Oklahoma winning twice and Kentucky winning once: 1) January 1, 1951: Kentucky 13, Oklahoma 7 (Sugar Bowl) 2) September 13, 1980: Oklahoma 29, Kentucky 7 3) September 18, 1982: Oklahoma 29, Kentucky 8
As long as you marry only one person at a time, and you have divorced all previous spouses before you remarry, the law places no lilmit on the number of times that you can marry, however, marrying more than seven times would be a very strange thing to do. If seven previous marriages have failed, it's probably time to admit defeat.