Grandmaster Robert Morey began his martial arts career in 1983 by studying Aikido for 5 years under Dr. Bob Simmons in what is now called Ki Society style. Sensei Simmons studied under Rod Kobayashi who himself studied directly under O-Sensei Morihei Ueshiba, the founder of Aikido. Robert then studied Taekwondo and Hapkido under Grandmaster D.K.Shin in San Francisco from 1991 to 1998 where he also taught at the dojang; he also studied Hapkido under his dear friend Max Yongwoo Lee who is the living incarnation of "indomitable spirit." After moving to Napa, he studied Taekwondo under Master Terry Brule from 2001 to 2005 where he was California state champion in his AAU division in both forms and sparring in 2002, 2003, and 2004. He formed the Napa School of Martial Arts in 2010 and the Sonoma School of Martial Arts in 2020. He continues his training in Taekwondo, Hapkido, and Kumdo under Grandmaster Shin at the head dojang in Belmont, where he achieved his 7th Dan and was awarded the ranking of Grandmaster in November of 2021. In addition to martial arts, he is a winemaker, consultant, author, art and antique collector, and is fluent in Portuguese, Spanish, English, and French. His two daughters are successful in their careers in marketing and civil engineering.

Email: Grandmaster Morey

Supreme Grandmaster Shin has spent over sixty five years studying martial arts. He is one of the very few who have achieved the highest rank in both Taekwondo (World Taekwondo Federation – Kukkiwon, 9th Dan) and Hapkido (World Hapkido Federation, 9th Dan).
In 1971, young Master Shin arrived in San Francisco and continued his training and teaching in the San Francisco Bay Area. In 1996, the Hwa Rang Kwan headquarters was relocated to Redwood City, California, and is now located at its current location in Belmont. Hwa Rang Kwan now has over fifty Hwa Rang Kwan branch dojangs in the world.
As a combat and self-defense instructor, Grandmaster Shin was responsible for training the renowned Korean Tiger Division, the Green Beret, the Jungle Ranger School in Vietnam, and trained the United States Military for ten years. Grandmaster Shin is also an instructor for Stanford University and a professor of both Seoul Sports University and United Arts College.

Email: Grandmaster D.K. Shin

Master Dan de la Torre began his martial arts path under Patrick Hoffman at Sonoma Taekwondo where he achieved his 4th Dan black belt and also taught classes.  At the Sonoma School of Martial Arts, he teaches poomsae (forms) in both ITF and Taegeuk styles on both Thursdays and Saturday.

Email: Master Dan de la Torre

Scott Rewick is a Brazilian Jiu Jitsu Black Belt under David Camarillo, of Guerilla Ju Jitsu.  As a BJJ practitioner for over 20 years, Scott began his martial arts journey under former UFC Middleweight champion Frank Shamrock at the world famous American Kickboxing Academy in San Jose.  Scott then went on to study (and receive his blue and purple belt) under legendary BJJ practitioner Ralph Gracie.  Scott received his brown and black belts under David Camarillo.

Email: Master Scott Rewick

Adam Traum’s teenage son, who is now a third-degree black belt inspired him to take up taekwondo. Watching classes from the sidelines for years gave him a head start when he began taking lessons via Zoom during the COVID-19 pandemic. With the excellent instruction of Grandmaster Morey, Mr. Adam learned the fundamentals of taekwondo and constantly aspires to a higher level.

Although he is relatively new to the sport, the osmosis of watching his son, plus his childhood experience with judo, has allowed Mr. Adam to reach his advanced belts in a relatively short time.

Following the practices of Grandmaster Morey, Mr. Adam focuses on core fundamentals that are the cornerstone of taekwondo. He takes his role as an instructor seriously, preparing his students not only for their upper belts but to also hold the values of taekwondo as they go through life. 

Mr. Adam is a 2nd Dan black belt and has worked diligently to improve as a martial artist, and is proud to represent Hwa Rang Kwan and the Sonoma School of Martial Arts.

Mr. Adam makes his living as a musician working as an instructor, clinician, performer, songwriter and music producer. His passion for excellence in music dovetails to the standards and fundamentals of taekwondo.

Email: Mr. Adam

Grandmaster Martin Marcus is an international Taekwondo referee and holds several 9th degree black belts (Dan) in several schools and organizations such as Changmookwan, Hwarangmuye, Jidokwan, and USA Taekwondo (USAT).  

He is also a Master Instructor at the Kukkiwon, the organization that regulates Taekwondo worldwide, USAT and Chang Moo Kwan.  He began his career in Michigan in 1973 where he studied under Grandmaster Robert B. C. Yu and, later, under Grandmasters James Sunhwan Chung (Michigan), Dr. Ken Min (Berkeley), and D.K. Shin (Belmont).   

He founded the League of Professional Taekwondo Referees and travels all around the world to referee and judge both forms (Poomsae) and sparring (Kyorugi) competitions.  

He focuses on Poomsae for advanced students at our school.

Email: Granmdaster Martin Marcus

Master Ellen Siebenlist grew up in a small town in Korea and began her martial arts journey in 2001 with Taekwondo.  She was immediately drawn to the discipline, grace, community, and the power of martial arts.  

She obtained her 4th degree black in Taekwondo under Master Steve Rapport in San Francisco and 2nd degree black belt in Kumdo under Grandmaster Rick Powell in Concord.  

She currently teaches our Little Tigers on Saturdays.

Email: Master Ellen Siebenlist

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