Prior to her marriage with the King, Katheryn would have borne the arms of Howard with a crescent in the upper centre of the lozenge; although her father, Edmund, was a third son, she was born after the second son's death without children in 1513; the crescent was a cadency mark to indicate the status of a second son. The Howard arms quartered Howard (red, with a white bend - a diagonal band - and three white crosses "crosslet fitchy" on either side; on the bend there was a gold shield of the arms of Scotland, save that the lion was cut in half with an arrow through its mouth), Brotherton, Warenne and Mowbray (a white lion on a red background; it seems to have changed to gold in more recent years). On her marriage to the king, Katheryn retained Brotherton in the second quarter and Howard in the third; her first and fourth quarters, however, were of royal augmentations given to her. The first quarter was ermine, with a blue "flanche" with three gold fleur-de-lys on it and a red rose on either side. The fourth was blue, with two lions of England and four half fleur-de-lys at the top, bottom, left and right. Katheryn would have borne this impaled with her husband's arms.

Arms of Katheryn Howard at Hampton Court. © HM the Queen. Scanned by Douglas Dowell.