Of the three, Mark is the second eldest/youngest, but he acts as the group's firm leader.
And the man said, "This is now bone of my bones, And flesh of my flesh; She shall be called Woman, Because she was taken out of Man." For this cause a man shall leave his father and his mother, and shall cleave to his wife; and they shall become one flesh.
Mark Edward Fischbach, better known by his online alias Markiplier, is an American You Tube personality, Let's Player and entertainer.
He is the younger brother of web comic author & artist Jason Thomas Fischbach known for Two Kinds.
Some have taken this command as either requiring that couples must never prevent conception or that the sole purpose of sexual relations is to produce children.
Neither of these interpretations are specified in scripture, and, in fact, are contradicted by other biblical passages.