Question:
Which position did Sir William Curtis, 1st Baronet hold in Dec, 1806?

Context:
 Sir William Curtis, 1st Baronet holds the position of Member of the 3rd Parliament of the United Kingdom from Oct, 1806 to Apr, 1807. 
 Sir William Curtis, 1st Baronet holds the position of Member of the 17th Parliament of Great Britain from Jun, 1790 to May, 1796. 
 Sir William Curtis, 1st Baronet holds the position of Member of the 4th Parliament of the United Kingdom from May, 1807 to Sep, 1812. 
 Sir William Curtis, 1st Baronet holds the position of Member of the 7th Parliament of the United Kingdom from Mar, 1820 to Jun, 1826. 
 Sir William Curtis, 1st Baronet holds the position of Member of the 18th Parliament of Great Britain from May, 1796 to Jan, 1801. 
 Sir William Curtis, 1st Baronet holds the position of Member of the 5th Parliament of the United Kingdom from Oct, 1812 to Jun, 1818. 
 Sir William Curtis, 1st Baronet holds the position of Member of the 6th Parliament of the United Kingdom from Feb, 1819 to Feb, 1820. 
 Sir William Curtis, 1st Baronet holds the position of Member of the 2nd Parliament of the United Kingdom from Jul, 1802 to Oct, 1806. 
 Sir William Curtis, 1st Baronet holds the position of Member of the 1st Parliament of the United Kingdom from Jan, 1801 to Jun, 1802. 
 Sir William Curtis, 1st Baronet holds the position of Member of the 8th Parliament of the United Kingdom from Jun, 1826 to Dec, 1826.

Answer:
Member of the 3rd Parliament of the United Kingdom