Jamie's father was also called Brian Dhu or Dubh. Brian was black haired and Dubh is Gaelic for black.
MacDubh is the nickname for the "son of Black Brian"
peace,
jesse
"Where did you learn to kiss like that?" I said, a little breathless. He grinned and pulled me close again. "I said I was a virgin, not a monk," he said, kissing me again.