There are no records of strong major hurricanes at Lorenzo's location in the satellite era as far as I know.Of course there may have been some prior to the satellite era, but will probably never know how strong they may have been. For example if the 1935 Labor Day hurricane went south of Key West and didn't hit land at that intensity, there is probably no way it would be re-analyzed at that intensity/pressure. It is the only storm in the pre-satellite era listed as having a pressure of <910 mb.