Allotment of Senate seats to provincial constituencies
1. Each provincial constituency shall elect four Senators.
2. Each insular constituency shall elect the following number of Senators: Gran Canaria, Mallorca and Tenerife three each; Ibiza-Formentera, Menorca, Fuerteventura, Gomera, Hierro and La Palma, one each.
3. The cities of Ceuta and Melilla shall elect two Senators each
4. Self-governing Communities shall also appoint one Senator and a further Senator for each million inhabitants in their territory. The appointment shall be made by the respective Legislative Assembly in the manner provided for in the Self-governing Community’s Statute, which is to ensure in any case an adequate proportional representation. For the purposes of said appointment the precise number of senators for each Self-governing Community shall be determined on the basis of the population census in force on the date of the last election to the Senate.