Complex sentence: In Wallachia and Moldavia, many small local states with varying degrees of independence developed, but only in the 14th century did the larger principalities of Wallachia (1310) and Moldavia (around 1352) emerge to fight the threat of the Ottoman Empire.
Split into simpler sentences: In Wallachia and Moldavia, many small local states with varying degrees of independence developed. Only in the 14th century did the larger principalities of Wallachia (1310) and Moldavia (around 1352) emerge to fight the threat of the Ottoman Empire.