The flag remained as the Seigneur's flag following the Second World War and the German occupation of the Channel Islands. In the 1960s, Dame Sibyl sold the tenement of the island of Brecqhou to Leonard Matchan. Upon taking up the tenancy, he adopted his own flag for Brecqhou using the Seigneur's flag as the basis and sewed his own personal coat of arms onto it. In 1993, when the tenement was purchased by David and Frederick Barclay, they also adopted their own flag by using the Seigneur's flag with their coat of arms defacing it.