Editing Joseph Luns (section)

==Personal life==
Luns married Baroness Lia van Heemstra, from the [[Van Heemstra|Van Heemstra family]]. The Lunses had two children − a son and a daughter.<ref name="van der Vat"/>

He remained a practising Catholic throughout his life and was generally sympathetic to the [[traditionalist Catholic]] position but never affiliated himself with dissident groups. Luns visited the [[Tridentine Mass]] held by the Assumptionist priest Winand Kotte, who opposed the modernising policies of the [[Second Vatican Council]], in [[St. Willibrord's Church, Utrecht]] in August 1971. This seems to have been something of a misunderstanding on Luns' part however, since he had never heard of Kotte's anti-Council movement and did not wish to be affiliated with it.<ref>Kersten, A.E., ''Luns. Een politieke biografie''. Amsterdam 2010 pp.448-449</ref>

An avid stamp collector, his favourite reading material included classical literature, history books (Luns was an expert on the history of the [[Napoleonic era]]) and detective novels. Because of his interests in international navies, the latest edition of ''[[Jane's Fighting Ships]]'' was always within his reach in his office.