Test1 no parameters
{{Cite RNB1823}}

{{Cite RNB1823}}

Public Domain Marshall, John (1823–1835). Royal Naval Biography. London: Longman and company. {{cite encyclopedia}}: Missing or empty |title= (help)

{{Cite RNB1823/sandbox}}

Public Domain Marshall, John (1823–1835). "article name needed". Royal Naval Biography. London: Longman and company.

Test2
{{Cite RNB1823|volume=1}}

{{Cite RNB1823}}

Public Domain Marshall, John (1823). Royal Naval Biography. Vol. 1. London: Longman and company. {{cite encyclopedia}}: Missing or empty |title= (help)

{{Cite RNB1823/sandbox}}

Public Domain Marshall, John (1823). "article name needed". Royal Naval Biography. Vol. 1. London: Longman and company.

Test3
{{Cite RNB1823|part=1 |volume=1}}

{{Cite RNB1823}}

Public Domain Marshall, John (1823). Royal Naval Biography. Vol. 1, part 1. London: Longman and company. {{cite encyclopedia}}: Missing or empty |title= (help)

{{Cite RNB1823/sandbox}}

Public Domain Marshall, John (1823). "article name needed". Royal Naval Biography. Vol. vol 1, part 1. London: Longman and company. {{cite encyclopedia}}: |volume= has extra text (help)

Test4
{{Cite RNB1823|part=1 |volume=2}}

{{Cite RNB1823}}

Public Domain Marshall, John (1824). Royal Naval Biography. Vol. 2, part 1. London: Longman and company. {{cite encyclopedia}}: Missing or empty |title= (help)

{{Cite RNB1823/sandbox}}

Public Domain Marshall, John (1824). "article name needed". Royal Naval Biography. Vol. vol 2, part 1. London: Longman and company. {{cite encyclopedia}}: |volume= has extra text (help)

Test5
{{Cite RNB1823|part=2 |volume=2}}

{{Cite RNB1823}}

Public Domain Marshall, John (1825). Royal Naval Biography. Vol. 2, part 2. London: Longman and company. {{cite encyclopedia}}: Missing or empty |title= (help)

{{Cite RNB1823/sandbox}}

Public Domain Marshall, John (1825). "article name needed". Royal Naval Biography. Vol. vol 2, part 2. London: Longman and company. {{cite encyclopedia}}: |volume= has extra text (help)

Test6
{{Cite RNB1823|volume=supplement}}

{{Cite RNB1823}}

Public Domain Marshall, John (1827–1830). Royal Naval Biography. Vol. sup. London: Longman and company. {{cite encyclopedia}}: Missing or empty |title= (help)

{{Cite RNB1823/sandbox}}

Public Domain Marshall, John (1827–1830). "article name needed". Royal Naval Biography. Vol. sup. London: Longman and company.

Test7
{{Cite RNB1823|part=3 |volume=supplement}}

{{Cite RNB1823}}

Public Domain Marshall, John (1829). Royal Naval Biography. Vol. sup, part 3. London: Longman and company. {{cite encyclopedia}}: Missing or empty |title= (help)

{{Cite RNB1823/sandbox}}

Public Domain Marshall, John (1829). "article name needed". Royal Naval Biography. Vol. sup, part 3. London: Longman and company.

Test if date can override
{{Cite RNB1823|date=1829b |part=3 |volume=supplement}}

{{Cite RNB1823}}

Public Domain Marshall, John (1829b). Royal Naval Biography. Vol. sup, part 3. London: Longman and company. {{cite encyclopedia}}: Missing or empty |title= (help)

{{Cite RNB1823/sandbox}}

Public Domain Marshall, John (1829b). "article name needed". Royal Naval Biography. Vol. sup, part 3. London: Longman and company.

Test whether year parameter override
{{Cite RNB1823|part=3 |volume=supplement |year=1829b}}

{{Cite RNB1823}}

Public Domain Marshall, John (1829b). Royal Naval Biography. Vol. sup, part 3. London: Longman and company. {{cite encyclopedia}}: Missing or empty |title= (help)

{{Cite RNB1823/sandbox}}

Public Domain Marshall, John (1829b). "article name needed". Royal Naval Biography. Vol. sup, part 3. London: Longman and company.