Possible Clues:

• 10 whose books include A Lady's Life in the Rocky Mountains (1879)
• Old queen there to be rung before tea, finally
• Woman liable to take trip across South Africa
• The Spanish queen is the first to be murdered by the French
• "Big Night" actress Rossellini
• A ring worn by one 'It Girl'?
• Queen who bankrolled Columbus
• A label is distributed in a sludgy colour
• Columbus patron
• Well known herb grower of Keats