2 out of my 6 have 2 middle names, both for family reasons....

Mason Andrew Watson ... Watson was his grandmothers middle name, she died shortly after his birth,
and
Zavier James Will .... He was born on my deseased granddads b'day, and his name was Wilfred. ( I just couldn't do "Wilfred", so he got Will! )

So I gave them their own name, but added the family ones too....