A friendly advertisement to the pretended Catholickes of Ireland declaring, for their satisfaction; that both the Kings supremacie, and the faith whereof his Majestie is the defender, are consonant to the doctrine delivered in the holy Scriptures, and writings of the ancient fathers. And consequently, that the lawes and statutes enacted in that behalfe, are dutifully to be observed by all his Majesties subjects within that kingdome. By Christopher Sibthorp, Knight, one of his Maiesties iustices of his court of chiefe place in Ireland. In the end whereof, is added an epistle written to the author, by the Reverend Father in God, Iames Vssher Bishop of Meath: wherein it is further manifested, that the religion anciently professed in Ireland is, for substance, the same with that, which at this day is by publick authoritie established therein.