Simultaneous claimants Berengar I, King (887–924) Louis III the Blind, King (900–905) Rudolph II of Burgundy, King (922–926) Hugh of Arles, King (924–947) Lothair II, King (948–950) Berengar II of Ivrea, co-King (950–961) Adalbert of Ivrea, co-King (950–963) Ottonian dynasty Otto I, King (961–973) Otto II, King (980–983) Otto III, King (996–1002) March of Montferrat (complete list) – William I, Marquis (?–pre-934) Aleramo, Marquis (933–991) William II, co-Marquis (?–pre-967) Otto I, ruler (c.991) William III, ruler (991–pre-1042) Papal States (complete list) – Benedict IV, Pope (900–903) Leo V, Pope (903) Sergius III, Pope (904–911) Anastasius III, Pope (911–913) Lando, Pope (913–914) John X, Pope (914–928) Leo VI, Pope (928) Stephen VII, Pope (929–931) John XI, Pope (931–935) Leo VII, Pope (936–939) Stephen VIII, Pope (939–942) Marinus II, Pope (942–946) Agapetus II, Pope (946–955) John XII, Pope (955–963, 964) Benedict V, Pope (964) Leo VIII, Pope (964–965) John XIII, Pope (965–972) Benedict VI, Pope (973–974) Benedict VII, Pope (974–983) John XIV, Pope (983–984) John XV, Pope (985–996) Gregory V, Pope (996–999) Sylvester II, Pope (999–1003) Duchy of Spoleto (complete list) – Alberic I, Duke (898–922) Boniface I, Duke (923–928) Peter, Duke (924–928) Theobald I, Duke (928–936) Anscar, Duke (936–940) Sarlione, Duke (940–943) Hubert, Duke (943–946) Boniface II, Duke (946–953) Theobald II, Duke (953–959) Transamund III, Duke (c.959–c.967) Pandulf I, Duke (967–981) Landulf, Duke (981–982) Transamund III, Duke (982–989) Hugh I the Great, Duke (989–996) Conrad, Duke (996–998) Adhemar, Duke (998–999) March of Tuscany (complete list) – Adalbert II the Rich, Margrave (886–915) Guy, Margrave (915–929) Lambert, Margrave (929–931) Boso, Margrave (931–936) Humbert, Margrave (936–961) Hugh the Great, Margrave (961–1001) Republic of Venice (complete list) – Pietro Tribuno, Doge (888–912) Orso II Participazio, Doge (912–932) Pietro II Candiano, Doge (932–939) Pietro Participazio, Doge (939–942) Pietro III Candiano, Doge (942–959) Pietro IV Candiano, Doge (959–976) Pietro I Orseolo, Doge (976–978) Vitale Candiano, Doge (978–979) Tribuno Memmo, Doge (979–991) Pietro II Orseolo, Doge (991–1009) Southern Italy Principality of Benevento (complete list) – Atenulf I, Prince (900–910) Landulf I, co-ruler (901–910), Prince (910–943) Atenulf II, co-ruler (911–940) Landulf of Conza, co-ruler (940) Atenulf III Carinola, co-ruler (933–943) Landulf II, co-ruler (940–943), Prince (943–961) Landulf III, co-ruler (959–961), Prince (961–968) Pandulf I, co-ruler (943–961), Prince (961–981) Landulf IV, co-ruler (968–981) Pandulf II, Prince (981–1014) Principality of Capua (complete list) – Atenulf I, Gastald (887–910) Landulf III, Gastald (901–910), Prince (910–943) Atenulf II, co-Prince (911–940) Landulf of