Complex sentence: He married again to the widow of Kamehameha II, Princess Kalanipauahi, their marriage lasted from 1825 to her death in 1826, and was probably the father of her daughter Princess Ruth Keelikolani.
Split into simpler sentences: He married again to the widow of Kamehameha II, Princess Kalanipauahi. Their marriage lasted from 1825 to her death in 1826, and was probably the father of her daughter Princess Ruth Keelikolani.