Biddulph was the eldest son of Robert Biddulph and his wife Elizabeth (née Palmer), daughter of George Palmer MP, of Nazeing Park in Essex. Among his siblings was Sir Robert Biddulph, a General in the Army, Colonel John Biddulph, who served in India, and George Tournay Biddulph, who also worked for the family banking firm. After his mother's death, his father married his second cousin, Lady Sarah Wilfreda Palmer, daughter of Earl Selborne and they lived at Douglas House, Petersham.[1][2]
Claud William Biddulph (1871–1954), who married his second cousin once removed Margaret Howard, the only daughter of Alfred John Howard of Warton Hall, and Mary Alice Kennedy, in 1906.[3]
Adela Margaret Mary Biddulph (d. 1876), who died young.[3]
Edith Mary Biddulph (d. 1939), who married Charles Wentworth Bell of Bronsil (d. 1929), in 1891.[3]
Lady Biddulh died on 13 January 1916. Lord Biddulph died in April 1923, aged 89, and was succeeded in the barony by his eldest son from his first marriage, John. Lady Biddulph died in 1916, aged 81.[3]
Coat of arms of Michael Biddulph, 1st Baron Biddulph
Crest
A wolf salient Argent charged on the shoulder with a trefoil slipped Gules.
Escutcheon
Vert an eagle displayed Argent armed and langued Gules a canton of the second.
Supporters
On either side a wolf Argent semée of trefoils slipped Gules.
Motto
Sublimiora Petamus (Let Us Aim At Loftier Things) [5]
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