Four or more generations of descendants of Robert Erskine (bef1380-1453) if they are properly linked:
1. Robert Erskine (bef1380-1453)
- 2. Janet Erskine (bef1420)
- 2. Thomas Erskine (bef1435-aft1493)
- 2. Christian Erskine (-aft1479)
- 3. William Graham (-1472)
- 3. Elizabeth Graham (c1452)