Sentence:  By the tenth century, out of the diversity of these Christianized Anglo-Saxon kingdoms emerged one of the most coherent political units in Europe, a single monarchy of England, with a precociously centralized government which eventually fell like a ripe plum into the grateful hands of Norman <WSD>carpetbaggers</WSD> in 1066. 
Meaning of the word marked with <WSD> tags:  One who comes to a place or organisation with which they have no previous connection with the sole or primary aim of personal gain, especially political or financial gain.