Queen Visenya Targaryen was the older sister and wife of King Aegon I Targaryen. Her younger sister, Rhaenys, was married to Aegon as well. Visenya was a dragonrider, and rode the dragon Vhagar.
Queen Rhaenys Targaryen was the youngest sister of King Aegon I Targaryen, the first Lord of the Seven Kingdoms. Both she and her older sister Visenya were married to Aegon, and it was said that she was Aegon’s favorite. Through her son with Aegon, Aenys I, the line of the dragonkings continued, with fifteen of the sixteen Targaryen kings being direct descendants of Rhaenys and Aegon. She was a dragonrider who rode the dragon Meraxes.
The Norse way of speaking, no one really knew what the Vikings sounded liked, they were Norsemen. The accent is really a combination of a Scandinavian accent, maybe with a Swedish accent and an old way of speaking.