He was married to Nina Lucas the daughter of the Greek Consul in Melbourne Australia. They had two children born in Paris, Antony (Billy) in 1923 and June in 1926. He met his wife in Melbourne while playing in the Davis Cup there in the early 1920s.
Aslangul died soon after the outbreak of WWII and Mrs Aslangul and her children fled from occupied Paris in 1940. The children came to Australia and were cared for by her father and Mrs Aslangul made it safely back to Australia in 1941.
Round 1
Round 2
Leonce Aslangul 1 *
Jean De Macedo
6-1
6-1
Round 3
Leonce Aslangul 1 *
Robert Le Blant
6-1
6-1
Quarterfinals
Denys Hippolyte Marie Laurent 1 *
Leonce Aslangul
6-1
6-0
Semifinals
Leonce Aslangul 1 *
Charles Fées
6-2
6-1
Final
Henri Cochet 1 *
Leonce Aslangul
6-3
6-3
6-1
Round 1
Leonce Aslangul 1 *
Arthur Mortley Cattanach
2-6
7-5
6-2
Round 2
Leonce Aslangul 1 *
Jack B. Turner
6-1
6-2
Quarterfinals
Leonce Aslangul 1 *
Norman William Strange
6-2
6-1
Semifinals
Leonce Aslangul 1 *
Francis Murray McCracken
6-3
5-7
6-1
Final
Leonce Aslangul 1 *
John (Jack) Clemenger
6-3
6-3
Round 1
Round 2
Leonce Aslangul 1 *
C. Aubert
6-0
6-0
Round 3
Leonce Aslangul 1 *
A. Persin
6-3
6-2
Quarterfinals
Leonce Aslangul 1 *
Jean Rebois
6-1
6-4
Semifinals
Leonce Aslangul 1 *
Georges Gouttenoire
4-6
6-4
6-3
Final
Paul Féret 1 *
Leonce Aslangul
6-2
6-3
4-6
6-1
Round 1
Leonce Aslangul 1 *
Maxime Guillemot
6-2
6-1
Round 2
Leonce Aslangul 1 *
Jacques Arago
6-4
6-2
Quarterfinals
Leonce Aslangul 1 *
André (Adrien) Aron
3-6
6-3
6-1
Semifinals
Leonce Aslangul 1 *
Jean Augustin
6-2
3-6
6-2
Final
Paul Féret 1 *
Leonce Aslangul
2-6
6-2
10-8
6-2
Round 1
Leonce Aslangul 1 *
A. Félix Poulin
6-3
6-1
Round 2
Leonce Aslangul 1 *
John Robert Tunis
6-3
6-1
Round 3
Leonce Aslangul 1 *
Rene Gallepe
6-2
6-1
Quarterfinals
Leonce Aslangul 1 *
Gordon Lowe
6-3
3-6
6-4
Semifinals
Leonce Aslangul 1 *
Jack Hillyard
6-1
6-2
Final
Francis Riou Leighton-Crawford 1 *
Leonce Aslangul
6-4
3-6
6-2
Round 2
Leonce Aslangul 1 *
J.A. Voelcker
6-4
6-0
Round 3
Leonce Aslangul 1 *
Robert Ramillon
8-6
6-0
Round 4
Leonce Aslangul 1 *
C.W. Gordon
6-0
6-2
Quarterfinals
Leonce Aslangul 1 *
Umberto de Morpurgo
3-6
8-6
5-3
ret.
Semifinals
Rene Lacoste 1 *
Leonce Aslangul
6-1
7-5
Round 1
Leonce Aslangul 1 *
J.W. Winans
w.o.
Round 2
Leonce Aslangul 1 *
E. Senn
6-1
6-0
Round 3
Leonce Aslangul 1 *
James (Jimmy) H. van Alen
6-4
6-4
Round 4
Leonce Aslangul 1 *
Gottfried von Banfield
6-3
6-4
Quarterfinals
Sune Malmstrom 1 *
Leonce Aslangul
0-6
6-4
7-5
Round 1
Leonce Aslangul 1 *
Lt. Col. Renny
6-3
6-1
Round 2
Leonce Aslangul 1 *
Guy Louis Albert Brian
6-1
6-1
Round 3
Leonce Aslangul 1 *
Captain D.W. Pailthorpe
6-1
6-0
Quarterfinals
Leonce Aslangul 1 *
A. Félix Poulin
6-4
6-0
Semifinals
Gordon Lowe 1 *
Leonce Aslangul
6-0
6-4
Round 1
Leonce Aslangul 1 *
W.M. Sherring
6-3
6-3
Round 2
Leonce Aslangul 1 *
Roland de Graffenried
6-4
7-5
Quarterfinals
Leonce Aslangul 1 *
George Cholmondeley
6-3
6-2
Semifinals
Leonce Aslangul 1 *
Jack Hillyard
6-3
4-6
7-5
Final
Umberto de Morpurgo 1 *
Leonce Aslangul
6-4
6-0
6-2
Round 2
Leonce Aslangul 1 *
W.M. Sherring
6-1
6-1
Round 3
Leonce Aslangul 1 *
B.S. Jewell
6-0
6-1
Quarterfinals
Leonce Aslangul 1 *
Col. Charles J. Brierley
2-6
7-5
6-4
Semifinals
Leonce Aslangul 1 *
Francis Riou Leighton-Crawford
3-6
6-2
6-3
Final
Henry Mayes 1 *
Leonce Aslangul
6-2
6-2
4-6
6-3
Round 1
Leonce Aslangul 1 *
G. Pascal
6-2
6-4
Round 2
Leonce Aslangul 1 *
Mr. Braun
6-0
6-2
Round 3
Leonce Aslangul 1 *
André (Adrien) Aron
7-5
6-3
Quarterfinals
Leonce Aslangul 1 *
Rene Lacoste
1-6
7-5
6-3
Semifinals
Leonce Aslangul 1 *
Marcel Dupont
0-6
6-4
6-0
Final
Pierre Hirsch 1 *
Leonce Aslangul
6-4
6-1
6-4
Round 1
Leonce Aslangul 1 *
J. Coutot
6-0
6-4
Round 2
Leonce Aslangul 1 *
E. Vuillemin
6-3
4-6
6-3
Quarterfinals
Leonce Aslangul 1 *
Paul Féret
7-5
2-6
6-4
Semifinals
Leonce Aslangul 1 *
M. Fournier
6-4
4-6
6-2
Final
Leonce Aslangul 1 *
Robert Champin
6-3
8-6
9-7
Round 1
Leonce Aslangul 1 *
W.W. Cain
6-1
6-0
Round 2
Leonce Aslangul 1 *
Major A. Keeble
w.o.
Round 3
Leonce Aslangul 1 *
Frank Fisher
6-1
7-5
Quarterfinals
Leonce Aslangul 1 *
George Cholmondeley
6-2
4-6
6-3
Semifinals
Ambrose Dudley 1 *
Leonce Aslangul
6-0
6-1
Round 1
Leonce Aslangul 1 *
J. Benoit
6-4
6-3
Round 2
Leonce Aslangul 1 *
P. Daninos
7-5
6-2
Quarterfinals
Leonce Aslangul 1 *
R. Tenard
6-3
6-2
Semifinals
Leonce Aslangul 1 *
Jean-Richard le Besnerais
4-6
6-3
6-2
Final
Leonce Aslangul 1 *
A. Léfebure
7-9
6-4
6-0
6-2