The king of england gave danish invaders a piece of land called

The first mentions of Danes are from the 6th century in Jordanes' Getica, by Procopius, and by Gregory of Tours. The first mention of Danes within the Danish territory is on the Jelling Rune Stone which states how Harald Bluetooth converted the Danes to Christianity in the 10th century.[22] Denmark has been continuously inhabited since this period; and, although much cultural and ethnic influence and immigration from all over the world has entered Denmark since then, present day Danes tend to see themselves as ethnic descendants of the early tribal Danes mentioned in the historic sources. Whether this is true or not, the Danish Royal Family can certainly trace their family line back to Gorm the Old (d. 958 AD) in the Viking Age, and perhaps even before that to some of the preceding semi-mythical rulers.

The answer is installation.