麦西亚王国在7世纪时曾是英格兰最强大的势力之一。

The Kingdom of ___Mercia was one of the dominant powers in England during the 7th century.

英格兰中部的许多传统节日仍然保留着麦西亚地区的古老习俗。

Many traditional festivals in central England still preserve the ancient customs of ___Mercia.