During leukopoiesis, neutrophils are derived from during leukopoiesis, neutrophils are derived from monoblasts myeloblasts lymphoblast proerythroblasts

Neutrophils are derived from myeloblasts. White blood cells can be divided into two lines of generation: The myeloid line and the lymphoid line. The myeloid line gives rise to a kind of white blood cell with characteristic azurophilic granules hence these are called granulocytes. Granulocytes include neutrophils, eosinophils, basophils, and monocytes. All four cells come from the immature cell from the myeloid cell line called myeloblasts. The myeloid line also gives rise to red blood cells and platelets. 

The lymphoid line, on the other hand, gives rise to lymphocytes and natural killer cells.

During leukopoiesis, neutrophils are derived from myeloblasts.

Myeloblasts is unipotent. Stem cell which has a difference into one of the effectors of granulocyte series. Myeloblasts resides extravascularly in the marrow.
 Leukopoiesis is termed as a form of hematopoiesis where white blood cells are being formed in the bone marrow which is located in adults and hematopoietic which is in the fetus.

No its just makes the straight guy curious