大公国

例句：

1. 1. The great prince of the land is known for his wisdom and generosity.
   这片土地的伟大王子以其智慧和慷慨而闻名。
2. 2. The kingdom of the great prince has been at peace for many years.
   这位伟大王子的王国多年来一直和平共处。
3. 3. The great prince's legacy lives on in the hearts of his people.
   这位伟大王子的遗产在他的人民心中永存。