original: This loose alliance became a margravate under the Bohemian crown in 1378.
simplifications: This alliance became a margravate under the Bohemian rule in 1378. The semi friends combined royal forces under the Bohemian crown. The alliance formed a margravate. They did it under the Bohemian crown in 1378. This alliance became a Bohemian margravate in 1378. While Boehmia was in charge the loose grouping became the largest force. Loose alliance are a margravate, under the Bohemian crown in 1378. The alliance became an official unit of Bohemia in 1378. The flimsy partnership became a margravate ruled by the Bohemian crown in 1378. This loose alliance became a territory of a military commander under the Bohemian crown in 1378. The loose alliance had become a margravate under Bohemian crown in 1378.