I can't believe no one has yet mentioned Katherine Kerr's Deverry Series. One of my all time favourite series.
Deverry
1. Daggerspell (1986)
2. Darkspell (1987)
3. The Bristling Wood (1989) aka Dawnspell: The Bristling Wood
4. The Dragon Revenant (1990) aka Dragonspell: The Southern Sea
Deverry: The Westlands
1. A Time of Exile (1991)
2. A Time of Omens (1992)
3. Days of Blood and Fire (1993) aka A Time of War
4. Days of Air and Darkness (1994) aka A Time of Justice
Deverry: The Dragon Mage
1. The Red Wyvern (1997)
2. The Black Raven (1998)
3. The Fire Dragon (2000)
Deverry: The Silver Wyrm
1. The Gold Falcon (2006)
2. The Spirit Stone (2007)
3. The Shadow Isle (2008)
4. The Silver Mage (2009)
Enjoy