Your orders come to you through the legitimate line of command because all your superiors understand these things.
I'm not suggesting that you shouldn't risk your life, provided it's in the legitimate line of duty.
After becoming a royal house, it produced several cadet branches, all now extinct in the legitimate male line.
The line of Roman popes is now recognized as the legitimate line, but confusion on this point continued until the 19th century.
He'd done well the past seven years, however - enough to set up a little business and raise his children into a more legitimate line of work.
Either one of us could do good in a legitimate line.
King William's legitimate line through his four children became extinct by 1290, leading to a Succession crisis.
The legitimate line ended in 1597 with him.
Many other children would follow, but all would die in the legitimate line except for Louis.
Upon his death the house of Beaufort became extinct in the legitimate line.