Friso is a legendary king of the Frisia

Frisia

Frisia is a coastal region along the southeastern corner of the North Sea, i.e. the German Bight. Frisia is the traditional homeland of the Frisians, a Germanic people who speak Frisian, a language group closely related to the English language...

ns who is said to have ruled around 300 BC. According to Martinus Hamconius in his 17th century chronicle Frisia seu de viris rebusque illustribus, and also the 19th century Oera Linda Book, Friso was a leader of a group of Frisian colonists who had been settled in the Punjab

Punjab region

The Punjab , also spelled Panjab |water]]s"), is a geographical region straddling the border between Pakistan and India which includes Punjab province in Pakistan and the states of the Punjab, Haryana, Himachal Pradesh, Chandigarh and some northern parts of the National Capital Territory of Delhi...

 for well over a millennium when they were discovered by Alexander the Great. Taking service with Alexander, Friso and the colonists eventually found their way back to their ancestral homeland of Frisia, where Friso founded a dynasty of kings.

Another legend has it that a red banner owned by Friso, called the Magnusvaan, is hidden at the church Almenum

Almenum

Almenum is a historic locality in the territory of the village of Midlum, Friesland, which is in the municipality of Harlingen in Friesland, Netherlands. It is located at the intersection of Zuidwalweg and Haulewei....

.