Ruler · 1909 – 1991

William Sidney, 1st Viscount De L'Isle

Lived 1909 – 1991; politician. Monarch of Australia (Australia), 1961 – 1965.

For the full story, the article on Wikipedia (CC BY-SA 4.0); this page holds what the record says of the reign.

Lived: 1909 – 1991; 82 years
In office: 4 years; one reign
Lines: 1; Australia
Left it: left office alive; read off the dates alone

Monarch of Australia

Australia · the 6th of 18 dated reigns · 1942 – 2022

2 before

Elizabeth II1952 – 2022

William Slim, 1st Viscount Slim1953 – 1960

William Morrison, 1st Viscount Dunrossil1960 – 1961

William Sidney, 1st Viscount De L'Isle1961 – 1965

Richard Casey, Baron Casey1965 – 1969

Paul Hasluck1969 – 1974

John Kerr1974 – 1977

9 after

died in officeleft alive by a regular roadstill in officeending not on recorda second row: a reign that began before the last had ended — rival claimants, or a shared thronethis entry

Reigned 1961 – 1965 · 4 years · came to it aged 52

Left it: left office aliveread off the dates alone: the term ends in 1965; they died in 1991

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Wikidata Q333824 (CC0) · the reigns from Wikidata's P39 terms, the rulers' own articles read by grammar (sentences quoted above, CC BY-SA 4.0) and Kokkonen & Sundell where they code the line · data built 2026-10-06 · Pastlas v2.9.1, by Oleh Voronko. The published atlas and its data are for non-commercial use.