Complex sentence: It emerged as an idea from continental Europe, but was of interest to some English architects.The arrival of emigre architects such as Mendelsohn and Lubetkin galvanized the position of modern architecture within England.
Split into simpler sentences: It emerged as an idea from continental Europe, but was of interest to some English architects. However it the arrival of emigre architects such as Mendelsohn and Lubetkin that galvanised the position of modern architecture within England.