Henry Thomas Alexander Erskine, 18th Earl of Buchan (born 1960) (b. 1960) Parents Hilary Power Malcolm Erskine, 17th Earl of Buchan Children Alexander Erskine, Lord Cardross Frederick Erskine Siblings Lady Arabella Erskine Montagu Erskine Lady Seraphina Erskine Partners Charlotte Erskine, Lady Cardross