The coat of arms designed to commemorate
Prince William's 18th birthday remembers Diana's family, the Spencers. The coat of arms for Prince William includes a small red scallop shell from the Spencer coat of arms. In fact, the Earl Spencer has used the scallop shell on emblems since the 16th century. The shell was also a popular symbol for medieval pilgrims.
William insisted on the shell's use in the new coat of arms, which also draws on symbols used by the Queen and by his father,
Prince Charles.
The coat of arms features a lion and a unicorn holding a shield. The scallop shell appears four times: on the necks of the lion and the unicorn; on the lion appearing above the shield; and on the shield itself.
Since the prince is an heir apparent to the throne, he is allowed three points along the top of the shield. Normally, only children of the monarch get three points, and grandchildren receive five points.
William's coat of arms will also likely change as he moves forward in the line of succession.