1: Æthelmearc, Kingdom of -New Order Name
OSCAR finds the name registered exactly as it appears in January of 1998, via Æthelmearc.
Crown's Heart, Award of the
Meaning (Crown's Heart) most important.
Herald of Record: Jorundr
Using the order name pattern of Saint's Object, from "Medieval Secular Order Names: Standard Forms of Order Names" by Juliana de Luna (Julia Smith). https://heraldry.sca.org/names/order/new/ListingOfStandardForms.html
Crown is a header in Reaney & Wilson: Thomas Crown 1327.
FamilySearch lists numerous records of people with surname 'Crown' (e.g. "England Births and Christenings, 1538-1975", database, FamilySearch (https://familysearch.org/ark:/61903/1:1:NK3P-5PV : 22 March 2020), Henrie Crown, 1605. Batch # C13826-1.) By precedent, late period English surnames can be used as given names, making 'Crown' a plausible saint's name.
Heart herte n. 1a. (a) The heart of a human being or of an animal; (b) anat. the human heart considered medically or scientifically;
[ quod.lib.umich.edu ]
Preference for modern English spelling