His sister , Mary of Guise , was Queen of Scotland as wife of King James V of Scotland and she was the mother of Mary , Queen of Scots .
Head entity: mary of guise Q229846 3 4 5
Tail entity: mary, queen of scots Q131412 25 26 27 28 29
Relation (head \u2192 tail): P25
Inverse relation (tail \u2192 head): P40