Use "letters patent" in a sentence

1. Soon after we had laid his body to rest, our brothers and fellow monks set out with letters patent to wait upon the king with tidings of our abbot's death and seek the royal licence for the election of his successor

2. This plantation was authorized by King James, of happy memorie, under letters patents of ye Kingdome of Scotland, and severall priviledges graunted unto some principall persons of ranke and quality of this Kingdome, with condition to undertake the same