Squire Jimmy, from Ultima V: Lazarus
When the Avatar inquired about Master Hawkins, regarding his job and his what being a Master meant, it led to Jimmy talking about Hawkins' grandfather designing the HMS Cape. "The Fastest Ship that Ever Sailed" and that Master Hawkins and his servants currently plied the family trade. When the Avatar asked about the HMS Cape, Jimmy revealed that Hawkins had misplaced the plans long ago, not knowing where they were.
Upon investigating, however, the Avatar found a locked storeroom which contained the plans. With the plans, sailing became much faster