Locard finding it impossible to go to Jerusalem returned to Scotland returning the heart of the king to the Abbey of Melrose and the bones of Sir James Douglas to St. Bride’s Kirk. To commemorate Sir Symon Locard's part in the crusade and the honour done to the family at some later date the name was changed to Lockheart and afterwards abbreviated to Lockhart. The king's heart within a fetterlock was from then on included in the family arms with the motto "Corda Serrata Pando" (I open locked hearts).
Locard could not visit Jerusalem; he returned to Scotland, returning King James's heart to Melrose Abbey and Sir James Douglas's bones to St. Bride’s Kirk. To honor Symon Locard's role in the crusade and the family's recognition at a later time, his name was changed to Lockheart and eventually shortened to Lockhart. The king's heart, encased in a fetterlock, became part of the family coat of arms with the motto "Corda Serrata Pando" (I open locked hearts).