Charles Cajetan Count Leslie, Leopoldus Count Leslie, and Antonius Count Leslie of Balquhain, Appellants. Peter Grant, and David Orme Writer in Edinburgh His Tutor Ad Litem, Respondents. The Said Charles Count Leslie, and Antonius Count Leslie, Appellants. And the Said Peter Grant, and David Orme, Respondents. The Case of the Appellants in These Conjoined Causes