<Table> <Tr> <Td> </Td> <Td> This article's plot summary may be too long or excessively detailed . Please help improve it by removing unnecessary details and making it more concise . (November 2010) (Learn how and when to remove this template message) </Td> </Tr> </Table> <Tr> <Td> </Td> <Td> This article's plot summary may be too long or excessively detailed . Please help improve it by removing unnecessary details and making it more concise . (November 2010) (Learn how and when to remove this template message) </Td> </Tr> <Table> <Tr> <Th_colspan="2"> Derek Shepherd </Th> </Tr> <Tr> <Td_colspan="2"> Grey's Anatomy character </Td> </Tr> <Tr> <Td_colspan="2"> Patrick Dempsey as Derek Shepherd in 2012 </Td> </Tr> <Tr> <Th> First appearance </Th> <Td> "A Hard Day's Night" (1.01) March 27, 2005 </Td> </Tr> <Tr> <Th> Last appearance </Th> <Td> "How to Save a Life" (11.21) May 14, 2015 </Td> </Tr> <Tr> <Th> Created by </Th> <Td> Shonda Rhimes </Td> </Tr> <Tr> <Th> Portrayed by </Th> <Td> Patrick Dempsey </Td> </Tr> <Tr> <Th_colspan="2"> Information </Th> </Tr> <Tr> <Th> Full name </Th> <Td> Derek Christopher Shepherd </Td> </Tr> <Tr> <Th> Nickname (s) </Th> <Td> McDreamy </Td> </Tr> <Tr> <Th> Occupation </Th> <Td> Attending neurosurgeon Member of the Board </Td> </Tr> <Tr> <Th> Title </Th> <Td> Chief of Neurosurgery Chief of Surgery M.D. F.A.C.S. </Td> </Tr> <Tr> <Th> Family </Th> <Td> Mr. Shepherd (father, deceased) Carolyn Maloney Shepherd (mother) Nancy Shepherd (sister) Kathleen "Kate" Shepherd (sister) Elizabeth "Lizzie" Shepherd (sister) Amelia Shepherd (sister) 9 unnamed nieces 6 unnamed nephews (one deceased) </Td> </Tr> <Tr> <Th> Spouse (s) </Th> <Td> Addison Montgomery (m . 1994; div. 2006) Meredith Grey (m . 2009--2015) </Td> </Tr> <Tr> <Th> Significant other (s) </Th> <Td> Rose </Td> </Tr> <Tr> <Th> Children </Th> <Td> Zola Grey Shepherd (daughter with Meredith) Derek Bailey Shepherd (son via Meredith) Ellis Shepherd (daughter via Meredith) </Td> </Tr> </Table> <Tr> <Th_colspan="2"> Derek Shepherd </Th> </Tr>

What was the date of derek shepherd's death
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