Complex sentence: Sir Charles George Young (1795-1869) served in the heraldic office of Garter King of Arms, the senior member of the College of Arms in England from 1842 until his death in 1869.
Split into simpler sentences: Sir Charles George Young (1795-1869) was an English officer of arms. He served in the heraldic office of Garter King of Arms, the senior member of the College of Arms in England from 1842 until his death in 1869.