Complex sentence: Establishing her own household at the Targaryen ancestral seat of Dragonstone, Rhaenyra is wed to her Targaryen cousin Laenor Velaryon and has three sons; but because Laenor is homosexual and Rhaenyra's boys do not appear traditionally Targaryen, rumors persist that they are illegitimate.
Split into simpler sentences: Establishing her own household at the Targaryen ancestral seat of Dragonstone, Rhaenyra is wed to her Targaryen cousin Laenor Velaryon and has three sons. Because Laenor is known to prefer men and Rhaenyra's boys do not appear traditionally Targaryen, rumors persist that they are illegitimate.