King Raven Trilogy was created in 2006.
The heroic character Bran ap Brychan is heir to the throne Elfael in the fictional King Raven Trilogy.
The Beaver Trilogy was created in 2001.
Gorse Trilogy was created in 1953.
Cairo Trilogy was created in 1956.
Larklight trilogy was created in 2006.
The Trilogy - album - was created in 2004.
U.S.A. trilogy was created in 1930.
Prehysteria trilogy was created in 1993.
Undersea Trilogy was created in 1992.
The Corellian Trilogy was created in 1995.
Viking Trilogy was created in 1957.
The Wimbledon Trilogy was created in 1993.