Sovereign Imperial and Royal House of Ghassan | 245 followers on LinkedIn. To stand as a powerful diplomatic agent of dialogue and change to spread equality and justice. | The Royal House of Ghassan enjoys full and unparalleled international recognition. Very few deposed Royal Houses are currently recognized by the republics that previously held their territories. The Ghassanid kings, emperors, and princes ruled several Middle Eastern regions from 220 CE until the mid-18th century (Christian branch) and 1921 CE (Muslim branch), over 1500 years.