The New arms of Lundy, Lundie, Lundin of that Ilk were granted to the Laird of Lundin by King Charles II in 1679. The Lairds were warranted by the crown, to carry the arms of Scotland upon their shield to show and account for descent from a natural son of King William the Lion of Scotland
"Charles Rex,
Whereas by a declaration, under the hand of our Lyon-Depute, in our ancient Kingdom of Scotland, bearing date the 2d of September last, it doth appear to us, that it is sufficiently instructed, by original charters and other ancient documents, that the ancient family of Lundin (London), in our said Kingdom, is lineally descended of Robert of London, natural son of William the Lion King of Scotland, and brother to King Alexander II. and in that regard of this descent, it may be proper (if Wee be pleased to allow ye same) for the Laird of Lundin to bear ye Royal armes of Scotland, within a bordure componed (or gobonated) Argent & Azure: and for ye Crest a Lyon Gules Issuant of an open (or antiquz) Crowne Or; And for Supporters two Lyons Guardant Gules, each having a Collar Or, charged with three thistles Vert with this Motto Dei donno sum, quod sum. And we being graciously desirous (upon all fitt occasions) to give Testimony of the Esteem Wee have of that antient and honourable Family, Doe by these Presents Give full power, Warrant and Authority to the present laird of Lundin, and his lawful successors of the name Lundin, and descending from that family, to bear the Royal armes of Scotland, within a bordure componed (or gobonated) Argent and Azure: And for the crest a Lyon Gules issuant forth of an open (or anticz) Crowne Or : And for supporters two Lyons Guardant Gules each having a collar Or charged with three thistles Vert, with this Motto: Dei dono sum, quod sum. for doing whereof This Shall be to him (and our Lyon King at armes, in that Our Kingdom now, or ye time being for extending and giving out ye said armes in due forme) a sufficient Warrant, which Wee doe hereby appoint to be recorded in the Bookes or Registers of Our Lyon Office, and this Originall Warrant remaine in the Custodie of the said Laird of Lundin and his Successors aforesaid. Given under the Royal hand and Signet at Our Court at Whitehall the 27th Day of October 1679. And of our Reigne ye 31 th year.