TOEFLを勉強中の者ですが､下記の構成がどうしてもわかりません｡｡｡　
(誤）Having ruled since the sixth century, the present emperor of Japan is a member of the same royal family as the others who have occupied the throne.

(正)Having ruled since the sixth century,
the loyal family of Japan,,,
って、正解のほうが｢､､､｣て省略されてしまってるのですが､この後はどう続くのでしょう､､､　どなたか､教えていただければ､､。