thumb|Eastergoa in the Frankish realm (in the Middle Ages thumb|The flag of Eastergoa.
thumb|Eastergoa in the Frankish realm (in the Middle Ages thumb|The flag of Eastergoa.
Eastergoa (also Ostergau, Ostergo, or Oostergo) was one of the Seven Sealands and one of the three Gaue within what is today the province of Friesland in the Netherlands.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).