The Duke of Cambridge’s Personal Canadian Flag
The flag of the Duke of Cambridge bears a blue roundel within a wreath of golden maple leaves for Canada, and shells, a symbol borrowed from his coat of arms. The centre features his Cypher, composed of the letter W with a coronet above it that indicates he is the child of the heir apparent of the Sovereign. Near the top of the flag is the personal three-point white label charged with a red shell, taken from his coat of arms.
Note that where the Governor General is in attendance, his personal flag will fly as he is the representative of The Queen in Canada and has precedence over The Prince of Wales and The Duke of Cambridge.