Matching Pairs INVATORS OF BRITANNIAOnline version relacione los nombres de cada grupo invasor con su respectiva descripción. by Ana Defas Sani 1 First Invators: The Iberians 2 Second Invaders: The Celts 3 Third Invators: The Romans 4 4 invaders: Germanic tribes. They were early medieval England, existing from the 5th to the 11th century from the end of Roman Britain until the Norman conquest in 1066. They were the members of Germanic-speaking groups. This culture developed from the 6th century BC, and perhaps as early as the fifth to the third millennium BC in the eastern and southern coasts of the Iberian peninsula. Julius Caesar's first landing on the shoreline of England in 55BC to the famous 'Look to your own defences' letter of AD410, they played an important part in British history for over 400 years. This group were warring tribes. They gradually infiltrated Britain over the course of the centuries between about 500 and 100 B.C. They were a group of peoples loosely tied by similar language, religion.