The Seal of the House of Eurasius, adopted in 1543.

The House of Eurasius (Eurasian: Gens Eurasii) is the ruling royal house of Eurasia, and is the oldest extant house in all of Esamir, having been founded millennia ago in the Laurentine Republic. It is the only house to ever rule the Eurasian Empire, and from it the royal houses of Arveyres, Duresia, and New Tarajan are descended.

The history of the Eurasii is long, with the house first coming to prominence in the mid 300's BCE as a patrician household.