Order of precedence in the Polish–Lithuanian Commonwealth

Argentina Australia Bangladesh Barbados Belgium Brazil Brunei Canada Chile China Colombia Denmark European Union Finland France Germany Greece Guatemala Holy See India Indonesia Ireland Isle of Man Israel Italy Jamaica Japan Lithuania Malaysia Malta New Zealand Nepal Norway Pakistan Poland Portugal Philippines Romania South Africa South Korea Spain Sri Lanka Singapore Sweden Switzerland Thailand Turkey United Kingdom The order of precedence for members of the Sejm (parliament) of the Polish–Lithuanian Commonwealth was created at the same time as the Commonwealth itself – at the Lublin Sejm in 1569.

The union's legislative power was vested in a diet (assembly) known as the Sejm which consisted of the three Estates of the Sejm: the monarch, holding the titles of King of Poland and Grand Duke of Lithuania; the Senate; and the House of Deputies.

The order of precedence remained almost unchanged from its inception in 1569 until the ultimate partition of Poland in 1795.

Territitorial losses incurred during Poland's decline in the second half of the 17th and throughout the 18th century had less bearing on the composition of the Sejm, as titular senators and deputies continued to sit in the parliament despite the loss of the lands they officially represented.

The Senate traced its roots to the royal privy council and consisted of individuals appointed by the king to specified senatorial offices.