Gaunt in Richard II qotes Tis royal trone of kings, this sceptred This
earth of ........ This seat of Mars
Complete the qotation

Here is the complete quotation: 

?This royal throne of kings, this sceptred isle,
This earth of majesty, this seat of Mars,
This other Eden, demi-paradise,
This fortress built by Nature for herself
Against infection and the hand of war,
This happy breed of men, this little world,
This precious stone set in the silver sea,
Which serves it in the office of a wall
Or as a moat defensive to a house,
Against the envy of less happier lands,?
This blessed plot, this earth, this realm, this England.?  

ATTRIBUTION: King Richard II. Act ii. Sc. 1.  
AUTHOR: William Shakespeare (1564-1616)  
http://education.yahoo.com/search/bfq?lb=q&p=num%3A138.16.9

Act II. Scene I.
http://education.yahoo.com/reference/shakespeare/plays/2621.html

Read it here also:
http://www.quotationspage.com/quote/25255.html

And here:
http://en.wikipedia.org/wiki/Richard_II_(play)
 


Search criteria:

"Richard II"  "This seat of Mars" 
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I hope this helps!

Best regards,
Bobbie7