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Books about Merania:
Vakuove Merania by Prof. Inz. Dr. Ales Blaha (1960)
Wiki information Merania:
The Duchy of Merania was a short-lived Estate of the Holy Roman Empire existing from 1153 until 1248. It was also called the Duchy of Dalmatia as it covered the northern Dalmatian seacoast. The name "Merania" derives from Latin: mare, probably...
Gertrude of Merania was the first wife of King Andrew II of Hungary and thereby Queen consort of Hungary from 1205 until her assassination. She was regent in Hungary during the absence of her spouse.